Articles
1. (PDF) Adams, R.P. 1970. Seasonal variation of terpenoid constituents in natural populations of Juniperus pinchotii Sudw. Phytochem. 9(2):397-402.
2. (PDF) Adams, R.P. 1970. Contour mapping and differential systematics of geographical variation. Syst. Zool. 19(4):385-390.
3. (PDF) Adams, R.P. and B.L. Turner. 1970. Chemosystematic and numerical studies in natural populations of Juniperus ashei Buch. Taxon. 19(5):728-751.
4. (PDF) Adams, R.P. 1972. Numerical analyses of some common errors in chemosystematics. Brittonia 24:9-21.
5. (PDF) Adams, R.P. 1972. Chemosystematic and numerical studies of natural populations of Juniperus pinchotii Sudw. Taxon. 21:407-427.
6. (PDF) Stack, Stephen M., M.J. Packard, and R.P. Adams. 1973 Ontogenetic alteration of the spindle apparatus: possible relation to chromosome pairing. Caryologia 26:383-388.
7. (PDF) Powell, R.A. and R.P. Adams. 1973. Seasonal variation in the volatile terpenoids of Juniperus scopulorum (Cupressacae). Am. J. Bot 60:1041-1051.
8. (PDF) Adams, R. P. 1973. Reevaluation of the biological status of Juniperus deppeana var. sperryi Correll. Brittonia 25:284-289.
9. (PDF) Zanoni, T.A. and R.P. Adams. 1973. Distribution and synonymy of Juniperus californica Carr. (Cupressacae) in Baja California, Mexico. Bull. Torrey Bot. Club. 100:364-367.
10. (PDF) Irving, R. and R.P. Adams. 1973. Genetics and biosynthetic relationships of monoterpenes. IN: Recent advances Phytochemistry, Vol. 6. pp. 187-214. V.C. Runeckles, Ed. Academic Press, N.Y.
11. (PDF) Adams, R.P. 1974. On "Numerical chemotaxonomy" revisited. Taxon 23:336-338.
12. (PDF) Adams, R.P. 1974. Computer graphic plotting and mapping of data in systematics. Taxon 23:53-70.
13. (PDF) Zanoni, T.A. and R.P. Adams. 1975. Southern range extension of Juniperus scopulorum Sarg. (Cupressacae) Southwest Nat. 20:133-136.
14. (PDF) Adams, R.P. 1975. Numerical-chemosystematic studies of infraspecific variation in Juniperus pinchotii Sudw. Biochem. Systm. and Ecol. 3:71-74.
15. (PDF) Adams, R.P. 1975. Gene flow versus selection pressure and ancestral differentiation in the composition of species: analysis of populational variation in Juniperus asheiBuch. using terpenoid data. J. Molec. Evol. 5:177-185.
16. (PDF) Adams, R.P., D.H. Wiken, W. Klein, G. Bryant, and R.G. Walter. 1975. RAPIC, the Missing Link? Bioscience 25:433-437.
17. (PDF) Adams, R.P. 1975. Statistical character weighting and similarity stability. Brittonia 27:305-316.
18. (PDF) Zanoni, T.A. and R. P. Adams. 1975. The genus Juniperus (Cupressaceae) in Mexico and Guatemala: Numerical and morphological analysis.
19. (PDF) Adams, R. P. and A. Hagerman. 1976. The volatile oils of young versus mature leaf oils of Juniperus scopulorum: Chemosystematic significance. Biochem. Syst. and Ecol. 4:75-79.
20. (PDF) Adams, R. P. and R. A. Powell. 1976. Seasonal variation of sexual differences in the volatile oil of Juniperus scopulorum. Phytochemistry 15:509-510.
21. (PDF) Adams, R. P. and W. A. Weber. 1976. An efficient method for the capture and transmission of specimen label information. Taxon 25:479-482.
22. (PDF) Zanoni, T. A. and R. P. Adams. 1976. The genus Juniperus (Cupressaceae) in Mexico and Guatemala: numerical and chemosystematic analysis. Biochem. Syst. and Ecol. 4:147- 158.
23. (PDF) Adams, R. P. 1977. Chemosystematics--Analysis of populational differentiation and variability of ancestral and modern Juniperus ashei. Ann. Mo. Bot. Gard. 64:184-209.
24. (PDF) Adams, R. P. and A. Hagerman. 1977. Diurnal variation in the volatile terpenoids of Juniperus scopulorum (Cupressaceae). Amer. J. Bot. 64:278-285.
25. (PDF) Kelley, W. A. and R. P. Adams. 1977. Preparation of extracts from juniper leaves for electrophoresis. Phytochemistry 16:513-516.
26. (PDF) Kelley, W. A. and R. P. Adams. 1977. Seasonal variation of isozymes in Juniperus scopulorum Sarg. (Cupressaceae). Amer. J. Bot. 64:1092-1096.
27. (PDF) Kelley, W. A. and R. P. Adams. 1978. Analysis of isozyme variation in natural populations of Juniperus ashei. Rhodora 80:107-134.
28. (PDF) Adams, R. P., M. Granat, L. R. Hogge and E. von Rudloff. 1979. Identification of lower terpenoids from gas-chromatograph-mass spectral data by on-line computer method. J. Chromatographic Sci. 17:75-81.
29. (PDF) Adams, R. P. and T. A. Zanoni. 1979. The distribution, synonymy, and taxonomy of three junipers of the southwestern United States and northern Mexico. Southwest Natl. 24:323-330.
30. (PDF) Adams, R. P. 1979. Diurnal variation in the terpenoids of Juniperus scopulorum (Cupressaceae)--Summer versus winter. Amer. Bot. 66:986-988.
31. (PDF) Zanoni, T. A. and R. P. Adams. 1979. The genus Juniperus (Cupressaceae) in Mexico and Guatemala: Synonymy, key and distributions of the taxa. Bull. Bot. Soc. Mex. 38:83-131.
32. (PDF) Adams, R. P., E. von Rudloff, T. A. Zanoni and L. R. Hogge. 1980. The terpenoids of an ancestral/advanced species pair of Juniperus. Biochem. Syst. Ecol. 8:35-37.
33. (PDF) Adams, R. P., E. von Rudloff, L. R. Hogge, and T. A. Zanoni. 1980. The volatile terpenoids of Juniperus monticola f. monticola, f. compacta, and f. orizabensis. J. Natl. Products 43:417-419.
34. (PDF) Adams, R. P., T. A. Zanoni, E. von Rudloff, and L. R. Hogge. 1981. The volatile oils of the southwestern U.S. and northern Mexico one- seeded junipers and their evolution. Biochem. Syst. Ecol. 9:93-96.
35. (PDF) Adams, R. P., E. von Rudloff, T. A. Zanoni, and L. R. Hogge. 1981. The volatile terpenoids of Juniperus blancoi and its affinities with other entire margin junipers of North America. J. Natl. Products 44:21-26.
36. (PDF) Adams, R. P., M. M. Palma, and W. S. Moore. 1981. Examination of the volatile oils of mature and juvenile leaves of Juniperus horizontalis: Chemosystematic significance. Phytochemistry 20:2501-2502.
37. (PDF) Adams, R. P. 1982. The effects of gases from a burning coal seam on morphological and terpenoid characters in Juniperus scopulorum (Cupressaceae). Southwestern Naturalist. 27:279-286.
38. (PDF) Adams, R. P. 1982. Production of liquid fuels and chemical feedstock from milkweed. Inst. Gas Tech. Symposium Proc. Energy from Biomass and Wastes VI. A.L. Klass, Ed. pp. 1113-1128.
39. (PDF) Adams, R. P. 1982. A comparison of multivariate methods for the detection of hybridization. Taxon 31:646-661.
40. (PDF) Schlarbaum, S. E., R. P. Adams, W. T. Bagley, and W. J. Wayne. 1982. Post-glacial migration and pathways of Quercus rubra L., northern red oak, as indicated by regional genetic variation patterns. Silva Genetica 31:150-158.
41. (PDF) Comer, C. W., R. P. Adams, and D. R. Van Haverbeke. 1982. Intra- and inter-specific variation of Juniperus virginiana L. and J. scopulorum Sarg. seedlings based on volatile oil composition. Biochem. Syst. and Ecol. 10:297-306.
42. (PDF) Adams, R. P. 1983. Infraspecific terpenoid variation in Juniperus scopulorum: evidence for Pleistocene refugia and recolonization in western North America. Taxon 32:30-46.
43. (PDF) Adams, R. P. 1983. The junipers of Hispaniola: comparisons with other Caribbean species and among collections from Hispaniola. Moscosa 2:77-89.
44. (PDF) Adams, R. P. and L. Hogge. 1983. Chemosystematic studies of the Caribbean junipers based on their volatile oil. Biochem. Syst. Ecol. 11:85-89.
45. (PDF) Adams, R. P. and J. D. McChesney. 1983. Phytochemicals for liquid fuels and petrochemical substitutions: extractions procedures and screening results. Econ. Bot: 37: 207-215.
46. (PDF) Adams, R. P., E. von Rudloff, and L. Hogge. 1983. Chemosystematic studies of the western North American junipers based on their volatile oils. Biochem. Syst. Ecol. 11:189-193.
47. (PDF) Adams, R. P. 1983. Chemicals from arid/semi-arid land plants: whole plant utilization of milkweeds. In: Plants: The Potentials for Extracting Protein, Medicines, and Other Useful Chemicals--Workshop Proceedings (Washington D.C.; U.S. Congress, Office of Technology Assessment, OTA-BP-F-23, September, 1983.)
48. (PDF) Adams, R. P. 1983. Selecting western U.S. species for the production of liquid fuels and chemical feedstocks. Proceedings of the Solar and Biomass Energy Workshop. J. Haynie (ed.). USDA Tifton, GA, April 26-28. pp. 156-159.
49. (PDF) Adams, R. P., M. F. Balandrin, L. Hogge, W. Craig, and S. Price. 1983. Analysis of the non-polar extractables of Asclepias speciosa. J. Am. Oil Chem. Soc. 60:1315-1318.
50. (PDF) Palma-Otal, M., W. S. Moore, R. P. Adams, and G. R. Joswiak. 1983. Genetic and biogeographical analyses of natural hybridization between Juniperus virginiana and J. horizontalis Moench. Canad. J. Bot. 61: 2733-2746.
51. (PDF) Dent, T. C. and R. P. Adams. 1983. Relationships of two isolated groups of sugar maples (Acer saccharum Marshall ssp. saccharum) in west central Oklahoma to eastern and western species. Rhodora 85: 439-456.
52. (PDF) Adams, R. P., M. F. Balandrin, and J. R. Martineau. 1984. The showy milkweed, Asclepias speciosa, a potential new semi-arid land crop for energy and chemicals. Biomass 4:81-104.
53. (PDF) Adams, R. P. and G. J. Seiler. 1984. Whole plant utilization of sunflowers. Biomass 4:69-80.
54. (PDF) Adams, R. P., T. A. Zanoni and L. Hogge. 1984 Analyses of the volatile oils of Juniperus deppeana and its infraspecific taxa: chemosystematic implications. Biochem. Syst. and Ecol. 12:23-28.
55. (PDF) Adams, R. P. and M. F. Balandrin. 1984. Application of biotechnological methods for the in vitro biosynthesis of bioactive saponins and propagation of endod. In:Phytolacca dodecandra (Endod): Final report of the international scientific workshop. Lusaka, Zambia, March 1983. A. Lemma, D. Heyneman and S. M. Silangua (eds). Tycooly International Publishing, Ltd., Dublin, Ireland.
56. (PDF) Adams, R. P., T. A. Zanoni and L. Hogge. 1984. The volatile leaf oils of Juniperus flaccida var. flaccida and var. poblana. J. Natl. Prod. 47:1064-1065.
57. (PDF) McChesney, J. D. and R. P. Adams. 1985. Co-evaluation of plant extracts as petrochemical substitutes and for biologically active compounds. Econ. Bot. 39:74-86.
58. (PDF) Klocke, J. A., M. F. Balandrin, R. P. Adams and E. Kingsford. 1985. Insecticidal chromenes from the volatile oil of Hemizonia fitchii. Chem. Ecol. 11:701-712.
59. (PDF) Ready, M. P., R. P. Adams and J. D. Robertus. 1984. Dodecandrin, a new ribosome-inhibiting protein from Phytolacca dodecandra. Biochim. et Biophys. Acta 791:314-319.
60. (PDF) Clark, D. and R. P. Adams. 1985. Near-Infrared Analysis of hydrocarbon producing plant species. Biomass 8:1-11.
61. (PDF) Adams, R. P., T. A. Zanoni and L. Hogge. 1985. The volatile leaf oils of the Junipers of Guatemala and Chiapas, Mexico: Juniperus comitana, J. gamboana and J. standleyi. J. Nat. Prod. 48:678-680.
62. (PDF) Adams, R. P., T. A. Zanoni and L. Hogge. 1985. The volatile leaf oils of two rare junipers from western Mexico: Juniperus durangensis and J. jaliscana. J. Nat. Prod. 48:673-674.
63. (PDF) Adams, R. P. 1986. Bio-Renewable sources of chemicals and fuel in the Chihuahuan Desert. in: Second Chihuahuan Desert Symposium, Proceedings, J. C. Barlow, A.M. Powell and B. N. Timmermann, eds. Chihuahuan Desert Res. Inst. Alpine, Texas. vol 11, 131-149.
64. (PDF) Adams, R. P. 1986. Geographic variation in Juniperus silicicola and J. virginiana of the southeastern United States: Multivariate analyses of morphology and terpenoids. Taxon 35:61-75.
65. (PDF) Adams, R. P., M. F. Balandrin, K. Brown, S. M. Gruel and M. Bagby. 1986. Extraction of liquid fuels and chemicals from higher land plants, Part I: Yields from western United States species. Biomass 9:255-292.
66. (PDF) Adams, R. P. 1987. Investigation of Juniperus species of the United States for new sources of cedar wood oil. Econ. Bot. 41: 48-54.
67. (PDF) Adams, R. P. C. E. Jarvis, V. Slane and T. A. Zanoni. 1987. Typification of Juniperus barbadensis L. and J. bermudiana L. and the rediscovery of J. barbadensis from St. Lucia, BWI. Taxon 36: 441-445.
68. (PDF) Adams, R. P. and S. C. Price. 1987. Seasonal variation in resource allocation of extractable compounds in Asclepias, Chrysothamnus and Grindelia. Biochemical Systematics & Ecology 15:417-426.
69. (PDF) Adams, R. P., A. S. Tomb and S. C. Price. 1987. Investigation of hybridization between Asclepias speciosa and A. syriaca (Asclepiadaceae) using alkanes, fatty acids and triterpenoids. Biochemical Systematics & Ecology 15:395-399.
70. (PDF) Adams, R. P. 1987. Yields and seasonal variation of phytochemicals from Juniperus species in the United States. Biomass 12:129-139.
71. (PDF) Adams, R. P., A. L. Almirall and L. Hogge. 1987. The volatile leaf oils of the junipers of Cuba: Juniperus lucayana Britton and Juniperus saxicola Britton and Wilson. Flavour and Fragrance Journal 2:33-36.
72. (PDF) Adams, R. P., C. E. Elhardt and W. H. Scouten. 1988. Protocol for the destruction of ethidium bromide used in molecular biology. Phytochemical Bulletin 20(2):18-19.
73. (PDF) Adams, R. P. and W. D. Clark. 1988. A cross-indexed synonymy of common components found in volatile essential oils. Phytochemical Bulletin 20:20-38.
74. (PDF) Adams, R. P., C. A. McDaniel and F. L. Carter. 1988. Termiticial activities in the heartwood, bark/sapwood and leaves of Juniperus species from the United States. Biochemical Systematics and Ecology 16:453-456.
75. (PDF) Zanoni, T. A. and R. P. Adams. 1989. Essential oils of plants of Hispaniola: 1. The volatile wood oil of Cinnamodendron ekmanii Moscosa 5:154-158.
76. (PDF) Adams, R. P., K. Neisess, R. M. Parkhurst, L. P. Makhubu and L. Wolde Yohannes. 1989. Geographic variation in Phytolacca dodecandra (Phytolaccaceae) in Africa. Taxon 38(1): 17-26.
77. (PDF) Adams, R. P. and G. F Edmunds, Jr. 1989. A reexamination of the volatile leaf oils of Pinus ponderosa Dougl. ex. P. Lawson using ion trap mass spectroscopy. Flavor and Fragrance Journal 4:19-23.
78. (PDF) Pyle, M. M. and R. P. Adams. 1989. In situ preservation of DNA in plant specimens. Taxon 38: 576-581.
79. (PDF) Adams, R. P. 1989. Biogeography and evolution of the junipers of the West Indies. pp. 167-190. in: Biogeography of the West Indies, A. Woods, ed., Sand Hill Crane Press, Inc., 878 p.
80. (PDF) Pyle, M.M. and R. P. Adams. 1989. Interim preservation of plant specimens for DNA utilization. Phytochem. Bull. 21: 5-7.
81. (PDF) Adams, R. P. 1990. The volatile leaf oils of Juniperus excelsa Bieb. from a native stand in Greece versus J. excelsa cultivated at Kew, London. J. Ess. Oil Res. 2:45-48.
82. (PDF) Clark, A. M., J. D. McChesney and R. P. Adams. 1990. Antimicrobial properties of heartwood, bark/sapwood and leaves of Juniperus species. Phytotherapy Research 4(1):15-19.
83. (PDF) Adams, R. P., J. A. Perez de la Rosa and M. Charzaro. 1990. The volatile leaf oil of Juniperus martinezii Perez de la Rosa and taxonomic status. J. Essential Oil Res. 2:99-104.
84. (PDF) Adams, R. P. 1990. The volatile leaf oil of Juniperus foetidissima Willd. from Greece and comparisons with oils from Turkey and the Crimea, USSR. J. Essential Oil Res. 2:67-70.
85. (PDF) Parkhurst, R. M., D. W. Thomas, R. P. Adams, L. P. Makhubu, B. M. Mthupha, L. Wolde-Yohannes, G. E. Heath, J. Stobaueus and W.O. Jones. 1990. Triterpene aglycones from various Phytolacca populations. Phytochemistry 29:1171-1174.
86. (PDF) Adams, R. P., E. Kendall and K. K. Kartha. 1990. Comparison of free sugars in growing and desiccated plants of the resurrection plant, Selaginella lepidophylla (Hook. & Grev.) Spring. Biochemical Syst. Ecol. 18:107-110.
87. (PDF) Adams, R. P. and T. A. Zanoni. 1990. Essential oils of plants from Hispaniola: 3. The leaf oil of Canella winterana (Canellaceae). J. Essential Oil Res. 2:163-165.
88. (PDF) Kendall, E. K., R. P. Adams and K. K. Kartha. 1990. Trehalase activities in plant tissue cultures. Phytochemistry 29(8): 2525-2528.
89. (PDF) Adams, R. P. 1990. Juniperus procera of East Africa: Volatile leaf oil composition and putative relationship to J. excelsa. Biochemical Syst. Ecol. 18(4):207-210.
90. (PDF) Adams, R. P., R. M. Parkhurst, L. Wolde-Yohannes and L. P. Makhubu. 1990. Phytolacca dodecandra (Phytolacceae) in Africa: Geographical Variation in Chemistry. Biochem. Syst. Ecol. 18(6):429-433.
91. (PDF) Zanoni, T. A., R. P. Adams and E. J. Miller. 1990. Essential oils of plants from Hispaniola: 2. The volatile leaf oil of Pinus occidentalis (Pinaceae). Moscosa 6:219-222.
92. (PDF) Adams, R. P., T. A. Zanoni and E. J. Miller. 1990. Essential oils of plants from Hispaniola: 4. The volatile leaf oil of Plethadenia granulata (Rutaceae). Moscosa 6:223-225.
93. (PDF) Adams, R. P. 1990. Preservation of Chihuahuan plant genomes through in vitro Biotechnology: DNA Bank-Net, a genetic insurance policy. in: Third Symposium on Resources of the Chihuahuan Desert Region. A,. M. Powell, R. R. Hollander, J. C. Barlow, W. B. McGillivray and D. J. Schmidly, eds. Chihuahuan Desert Research Inst., Printech, Lubbock, TX.
94. (PDF) Liston, A., L. H. Rieseberg, R. P. Adams, N. Do and Zhu Ge-lin. 1990. A method for the collection of plants for DNA and isozyme analyses and the results of a field test in Xinjiang, China. Ann. Mo. Bot. Gard. 77: 859-863.
95. (PDF) Do, N. and R. P. Adams. 1991. A simple technique for removing plant polysaccharide contaminants from DNA. Biotechniques 10: 162-166.
96. (PDF) Zanoni, T. A. and R. P. Adams. 1991. Essential oils of plants from Hispaniola: 5. The volatile leaf oil of Lepechinia urbanii. Flavor and Fragrance J. 6:75-77.
97. (PDF) Adams, R. P. and J. R. Kistler. 1991. Hybridization between Juniperus erythrocarpa Cory and Juniperus pinchotii Sudworth in the Chisos Mountains, Texas. Southwest. Natl. 36: 295-301.
98. (PDF) Adams, R. P. 1991. Analysis of Juniper and other forest tree oils. pp. 131-157. IN Modern Methods of Plant Analysis, New Series: Oil and Waxes. H.-F. Linskens and J. F. Jackson, eds. Springler-Verlag, Berlin.
99. (PDF) Adams, R. P. 1991. Cedarwood oil - Analysis and properties. pp. 159-173. IN Modern Methods of Plant Analysis, New Series: Oil and Waxes. H.-F. Linskens and J. F. Jackson, eds. Springler-Verlag, Berlin.
100. (PDF) Tucker, A. O., M. J. Maciarello, R. P. Adams, L. R. Landrum and T. Zanoni. 1991. Volatile leaf oils of Caribbean Myrtaceae. I. Three varieties of Pimenta racemosa(Miller) J. Moore of the Dominican Republic and the Commercial Bay Oil. J. Essential Oil Res. 3:323-329.
101. (PDF) Tucker, A. O., M. J. Maciarello, R. P. Adams, L. R. Landrum and T. Zanoni. 1991. Volatile leaf oils of Caribbean Myrtaceae. III. Pimenta haitiensis (Urban) Landrum of the Dominican Republic. J. Ess. Oil Res. 3:471-473.
102. (PDF) Adams, R. P., Nhan Do and Chu Ge-Lin. 1992. Preservation of DNA in plant specimens from endangered tropical species by desiccation. in: Conservation of Plant Genes: DNA Banking and in vitro Biotechnology. R. P. Adams and J. E. Adams, eds. Academic Press, NY
103. (PDF) Demeke, T. and R. P. Adams. 1992. The effects of plant polysaccharides and buffer additives on PCR. BioTechniques 12(3):332-334.
104. (PDF) Adams, R. P., R. K. Thappa, S. G. Agarwal, B. K. Kapahi and Y. K. Sarin. 1992. The volatile leaf oils of Juniperus semiglobosa Regel from India compared with J. excelsa M.-Bieb. from Greece. J. Ess. Oil Res. 4(2): 143-149.
105. (PDF) Adams, R. P. and P. Weyerstahl. 1992. cis- and trans-Sabinene hydrate - Comparisons of quadrupole and ion trap mass spectra. J. Ess. Oil Res. 4(2):197-200.
106. (PDF) Adams, R. P. 1992. DNA Bank-Net to use DNA technology to save endangered germplasm. Diversity 8:23.
107. (PDF) Demeke, T., R. P. Adams and R. Chibbar. 1992. Potential taxonomic use of random polymorphic DNA (RAPDs): A case study in Brassica. Theoretical and Applied Genetics 84: 990-994.
108. (PDF) Adams, R. P. and T. A. Zanoni. 1993. Juniperus monticola (Cupressaceae) Revisited. Taxon 42: 85-86.
109. (PDF) Adams, R. P. 1993. Nomenclatural note: Juniperus coahuilensis (Martinez) Gaussen ex R. P. Adams. Phytologia 74:413.
110. (PDF) Adams, R. P., Zhang Shao-Zhen and Chu Ge-lin. 1993. The volatile leaf oil of Juniperus convallium Rehd. & Wils. from Gansu, China. Ess. Oil Res. 5:571-573.
111. (PDF) Adams, R. P. 1993. DNA Bank-Net: An International network of DNA banks and in vitro storage institutions. AgBioTech News & Info. 5:317N-319N.
112. (PDF) Adams, R. P. and T. Demeke. 1993. Systematic relationships in Juniperus based on random amplified polymorphic DNAs (RAPDs). Taxon 42: 553-572.
113. (PDF) Adams, R. P., T. Demeke and H. A. Abulfatih. 1993. RAPD DNA Fingerprints and terpenoids: Clues to past migrations of Juniperus in Arabia and east Africa. Theroet. Appl. Genet. 87: 22-26.
114. (PDF) Adams, R. P., Zhang Shao-Zhen and Chu Ge-lin. 1993. The volatile leaf oil of Juniperus saltuaria Rehd. & Wils. from China. J. Ess. Oil Res. 5:676-677.
115. (PDF) Adams, R. P. 1993. Juniperus in: Flora of North America. Vol 2. Pteridophytes and Gymnosperms. pp. 412-420, Nancy R. Morin, ed. Oxford University Press, NY. 475p.
116. (PDF) Adams, R. P. 1993. The conservation and utilization of genes from endangered and extinct plants: DNA Bank-Net. IN: Gene conservation and Exploitation. J. P.Gustafson, R. Appels and P. Raven, eds. Plenum Press. NY
117. (PDF) Adams, R. P. Chu Ge-lin and Zhang Shao-Zhen. 1994. The volatile leaf oils of Juniperus przewalskii Kom. and forma pendula (Cheng & L. K. Fu) R. P. Adams and Chu Ge-lin from China. JEOR 6: 17-20.
118. (PDF) Adams, R. P. 1994. Geographic variation in the volatile terpenoids of Juniperus monosperma and J. osteosperma. Biochem. Syst. Ecol. 22:65-72.
119. (PDF) Adams, R. P., Chu Ge-lin and Zhang Shao-Zhen. 1994. The volatile leaf oils of Juniperus chinensis L., J. chinensis var. kaizuca Hort. and cv. pyramidalis from China. J. Ess. Oil Res. 6:149-154.
120. (PDF) Adams, R. P. Adams. S. Shatar, and A. D. Dembitsky. 1994. Comparison of the volatile leaf oils of Juniperus davurica Pall. from Mongolia with plants cultivated in Kazakhstan, Russia and Scotland. JEOR 6:217-221.
121. (PDF) Demeke, T. and R. P. Adams. 1994. The use of PCR-RAPD Analysis in plant taxonomy and evolution. in: PCR Technology: Current Innovations, H.G. Griffin and A. M. Griffin, eds., CRC Press, Boca Raton, FL.
122. (PDF) Adams, R. P. 1994. DNA Bank-Net - An Overview. in: Conservation of Plant Genes II: Utilization of Ancient and modern DNA, R. P. Adams, J. S. Miller, E. M. Golenberg and J. E. Adams, eds., Missouri Botanical Garden Press, St. Louis.
123. (PDF) Demeke, T. and R. P. Adams. 1994. The use of RAPDs to determine germplasm collections strategies in the African species, Phytolacca decandra (Phytolaccaceae) Conservation of Plant Genes II: Utilization of Ancient and modern DNA, R. P. Adams, J. S. Miller, E. M. Golenberg and J. E. Adams, eds., Missouri Botanical Garden Press, St. Louis.
124. (PDF) Adams, R. P. 1994. Geographic variation and systematics of monospermous Juniperus from the Chihuahuan desert based on RAPDs and terpenes. Biochem. Syst. Ecol. 22:699-710.
125. (PDF) Adams, R. P., Chu Ge-lin and Zhang Shao-Zhen. 1995. Comparisons of the volatile leaf oils of Juniperus rigida Mig. from northwestern China, Korea and Japan. J. Ess. Oil Res. 7:49-52.
126. (PDF) Adams, R. P. 1995. Revisionary study of Caribbean species of Juniperus (Cupressaceae) Phytologia 78: 134-150.
127. (PDF) Anderson, A., H. Deslaurieres, G. Collin and R. P. Adams. 1995. Essential oil of the wood of Thuja occidentalis L. JEOR 7:489-495.
128. (PDF) Adams, R. P., Zhang Shao-Zhen, and Chu Ge-lin. 1995. The leaf essential oil of Juniperus formosana Hayata from China. J. Ess. Oil Res. 7:687-689.
129. (PDF) Adams, R. P. 1996. Conservation of DNA: DNA Banking. in Biotechnology and Plant Genetic Resources: Conservation and Use. B. V. Ford-Lloyd, H. J. Newbury and J. A. Callow, eds., CAB International, Oxon, UK.
130. (PDF) Adams, R. P., Zhang Shao-Zhen, and Chu Ge-lin. 1996. The leaf essential oil of Juniperus squamata D. Don var. fargesii Redh & Wils. from China. J. Ess. Oil Res. 8:53-56.
131. (PDF) Pandey, R. N., R. P. Adams, and L. E. Flournoy. 1996. Inhibition of Random Amplified Polymorphic DNAs (RAPDs) by plant polysaccharides and effects of buffer enhancers. Plant Molecular Biology Reporter 14: 17-22.
132. (PDF) Flournoy, Lori E., R. P. Adams, and R. N. Pandey. 1996. Interim and archival preservation of plant specimens in alcohols for DNA studies. BioTechniques 20: 657-660.
133. (PDF) Adams, R. P., A. F. Barrero and A. Lara. 1996. Comparisons of the leaf essential oils of Juniperus phoenicea L., J. phoenicea
subspeuediterranea Lebr. & Thiv. and J. phoenicea var. turbinata (Guss.) Parl. J. Essent. Oil Res. 8:367-371.
134. (PDF) Shatar, S. and R. P. Adams. 1996. Analyses of the leaf and resin essential oils of Pinus sibirica (Rupr.) Mayr from Mongolia. J. Ess. Oil Res. 8:549-552.
135. (PDF) Adams, R. P. and R. P. Chaudhary. 1996. The leaf essential oil of Juniperus indica Bertol. from Nepal. JEOR 8: 677-680.
136. (PDF) Adams, R. P. 1997. Passive infiltration of insecticides into plant materials/essential oils during transit. JEOR 9: 3-4.
137. (PDF) Adams, R. P., T. A. Zanoni, A. L. Cambil, A. F. Barrero and L. G. Cool. 1997. Comparisons among Cupressus arizonica Greens, C. benthamii Endl., C. lindleyi Klotz. ex Endl. and C. lusitanica Mill. using leaf essential oils and DNA fingerprinting. JEOR 9:303-310.
138. (PDF) Adams, R. P. 1997. Comparisons of the volatile leaf oils of Juniperus drupacea Labill. from Greece, Turkey and the Crimea. JEOR 9:541-544.
139. (PDF) Adams, R. P. 1997. The leaf essential oil of Juniperus gracilior Pilger var. urbaniana (Pilger & Ekman) R. P. Adams: Comparison with other Caribbean Juniperus species. JEOR 9: 641-647.
140. (PDF) Adams, R. P. 1998. The leaf essential oil of Juniperus recurva Buch.-Ham. ex D. don from India and Nepal compared with J. recurva var. squamata (D.Don) Parl. JEOR 10: 21-24
141. (PDF) Adams, R. P. and Y. Turuspekov. 1998. Taxonomic reassessment of some Central Asian and Himalayan scale-leaved taxa of Juniperus (Cupressaceae) supported by random amplification of polymorphic DNA. Taxon 47:75-84.
142. (PDF) Adams, R. P., T. A. Zanoni, Teris A. van Beek, M. A. Posthumous and Cees van de Haar. 1998. Essential leaf oil of Amyris diatrypa Sprengel from the Dominican Republic. J. Ess. Oil Res. 10: 175-178.
143. (PDF) Adams, R. P. and M. R. Dafforn. 1998. DNA fingerprints (RAPDs) of the pantropical grass vetiver, Vetiveria zizanioides (L.) Nash (Gramineae), reveal a single clone 'Sunshine' is widely utilized for erosion control. http://www.vetiver.org/resdna.htm, The Vetiver Network, Leesburg, Virginia.
144. (PDF) Adams, R. P., and M. R. Dafforn. 1998. Lessons in diversity: DNA sampling of the pantropical grass Vetiveria zizanioides uncovers genetic uniformity in erosion-control program. Diversity 13: 27-28
145. (PDF) Adams, R. P., Lori E. Flournoy, Ram Lakhan Singh, Hiram Johnson and Herman Mayeux. 1998. Invasion of grasslands by Juniperus ashei: A new theory based on random amplified polymorphic DNAs (RAPDs). Biochemical Systematics and Ecology 26: 371-377.
146. (PDF) Adams, R. R. 1998. The leaf essential oils and chemotaxonomy of Juniperus sect. Juniperus. Biochemical Systematics and Ecology 26:637-645.
147. (PDF) Adams, R. P. and L. H. Rieseberg. 1998. The effects of non-homology in RAPD bands on similarity and multivariate statistical ordination in Brassica and Helianthus. Theoret. App. Gen. 97:323-326.
148. (PDF) Adams, R. P. L. E. Flournoy and R. N. Pandey. 1998. Obtaining reproducible patterns from random polymorphic DNA amplification (RAPDs). in Conservation of Plant Genes III: Conservation and Utilization of African Plants. R. P. and J. E. Adams, eds.,
Missouri Botanical Garden, St. Louis.
149. (PDF) Adams, R. P., Ming Zhong, Y. Turuspekov, M. R. Dafforn and J. F. Veldkamp. 1998. DNA fingerprinting reveals clonal nature of Vetiver (Vetiveria zizanioides L. (Nash) and sources of potential new germplasm. Molecular Ecology 7: 813-818.
150. (PDF) Adams, R. P., A. D. Dembitsky and S. Shatar. 1998. The leaf essential oils and taxonomy of Juniperus centrasiatica Kom., J. jarkendensis Kom., J. pseudosabinaFisch., May. & Ave-Lall., J. sabina L. and J. turkestanica Kom. JEOR 10: 489-496.
151. (PDF) ter Welle, B. J. H. and R. P. Adams. 1998. Investigation of the wood anatomy of Juniperus (Cupressaceae) for taxonomic utilization. Phytologia 84: 354-362.
152. (PDF) Shatar, S. and R. P. Adams. 1998. The essential oil of Asterothamnus centralisiaticus Novopokr. from Mongolia. JEOR 10: 654-656.
153. (PDF) Adams, R. P., J. Altarejos, C. Fernandez, and A. Camacho. 1999 The leaf essential oils and taxonomy of Juniperus oxycedrus L. subsp. oxycedrus, subsp. badia (H. Gay) Bedeaus, and subsp. macrocarpa (Sibth. & Sm.) Ball. JEOR 11, 167-172.
154. (PDF) Adams, R. P. 1999. Systematics of multi-seeded eastern hemisphere Juniperus based on leaf essential oils and RAPD DNA fingerprinting. BSE 27: 709-725.
155. (PDF) Adams, R. P., M. Zhong and Y. Fei. 1999. Preservation of DNA in Plant Specimens: Inactivation and re-activation of DNases in field specimens. Molec. Ecol. 8: 681-683.
156. (PDF) Le Duc, A., R. P. Adams and Ming Zhong. 1999. Using random amplification of polymorphic DNA for a taxonomic reevaluation of Pfitzer junipers. HortScience 34(6):1123-1125.
157. (PDF) Adams, R. P. and M. R. Dafforn. 1999. DNA fingerprints of the pantropical grass vetiver, Vetiveria zizanioides. Au Journal of Technology 2:173-180.
158. (PDF) Adams, R. P., M. Zhong, P. Srifah and N. Sangduen. 1999. DNA genetic diversity of Vetiveria zizanioides (Poaceae). Phytologia 85: 85-95.
159. (PDF) Adams, R. P. 2000a. Systematics of smooth leaf margin Juniperus of the western hemisphere based on leaf essential oils and RAPD DNA fingerprinting. BSE 28: 149-162.
160. (PDF) Adams, R. P. 2000b. Systematics of Juniperus section Juniperus based on leaf essential oils and RAPD DNA fingerprinting. Biochem. Syst. Ecol. 28: 515-528.
161. (PDF) Adams, R. P. 2000c. Systematics of the one seeded Juniperus of the eastern hemisphere based on leaf essential oils and random amplified polymorphic DNAs (RAPDs). Biochem. Syst. Ecol. 28: 529-543.
162. (PDF) Adams, R. P. 2000d. The serrate leaf margined Juniperus (Section Sabina) of the western hemisphere: Systematics and evolution based on leaf essential oils and Random Amplified Polymorphic DNAs (RAPDs). Biochem. Syst. Ecol. 28: 975-989.
163. (PDF) Adams, R. P. 2001. Geographic variation in leaf essential oils and RAPDs of J. polycarpos K. Koch in central Asia. Biochem. Syst. Ecol. 29: 609-619.
164. (PDF) Adams, R. P., R. N. Pandey, Serge Rezzi and Joseph Casanova. 2002. Geographic variation in the Random Amplified Polymorphic DNAs (RAPDs) of Juniperus phoenicea, J. p. var. canariensis, J. p. subsp. eu-mediterranea, and J. p. var. turbinata. Biochem. Syst. Ecol. 30: 223-229.
165. (PDF) Adams, R. P., C. Hsieh, J. Murata, R. N. Pandey. 2002. Systematics of Juniperus from eastern Asia based on Random Amplified Polymorphic DNAs (RAPDs). Biochem. Syst. Ecol. 30: 231-241.
166. (PDF) Turuspekov, Y., R. P. Adams and C. M. Kearney. 2002. Genetic diversity of three perennial grasses from the Semipalatinsk nuclear testing region of Kazakstan after long-term nuclear testing radiation exposure. BSE 30: 809-817.
167. (PDF) Rushforth, K., R. P. Adams, Ming Zhong, Xiao-qiang Ma and Ram Naresh Pandey. 2003. Variation among Cupressus species from the eastern hemisphere based on Random Amplified Polymorphic DNAs (RAPDs). BSE 31:17-24.
168. (PDF) Adams, R. P., Ram N. Pandey, Jerry W. Leverenz, Norman Dignard, Kenneth Hoegh and Thor Thorfinnsson. 2003. Pan-Arctic variation in Juniperus communis: Historical Biogeography based on DNA fingerprinting. BSE 31:181-192.
169. (PDF) Adams, R. P., A. Schwarzbach and R. N. Pandey. 2003. The Concordance of Terpenoid, ISSR and RAPD markers, and ITS sequence data sets among genotypes: An example from Juniperus. BSE 31: 375-387.
170. (PDF) Cool, L. G. and R. P. Adams. 2003. A pregeijerene isomer from Juniperus erectopatens foliage. Phytochem. 63:105-108.
171. (PDF) Bartel, J. A., R. P. Adams, S. A. James, L. E. Mumba and R. N. Pandey. 2003. "Variation among Cupressus species from the western hemisphere based on Random Amplified Polymorphic DNAs (RAPDs)" BSE 31:693-702.
172. (PDF) Adams, R. P., L. E. Mumba, S. A. James, R. N. Pandey, T. Gauquelin and W. Badri. 2003. Geographic variation in the leaf essential oils and DNA fingerprints (RAPDs) ofJuniperus thurifera L. from Morocco and Europe. J. Ess. Oil Res. 15:148-154.
173. (PDF) Adams, R. P., and R. N. Pandey. 2003. Analysis of Juniperus communis and its varieties based on DNA fingerprinting. BSE 31: 1271 - 1278.
174. (PDF) Betty C-R. Zhu, Gregg Henderson, Robert P. Adams, Li-Xin Mao, Ying Yu and Roger A. Laine. 2003. Repellency of vetiver oils from different biogenetic and geographic origins against Formosan subterranean termites (Isoptera: Phinotermitidae). Sociobiology 42: 623-638.
175. (PDF) Adams, R. P., R. N. Pandey, M. R. Dafforn and S. A. James. 2003. Vetiver DNA fingerprinted cultivars: Effects of environment on growth, oil yields and composition. J. Essent. Oils 15: 363-371.
176. (PDF) Adams, R. P. 2004. The co-occurrence and systematic significance of pregeijerene B and 8-α-acetoxyelemol in Juniperus. BSE 32: 559-563.
177. (PDF) Adams, R. P. 2004. Juniperus deltoides, a new species and nomenclatural notes on Juniperus polycarpos and J. turcomanica (Cupressaceae). Phytologia 86: 49 - 53.
178. (PDF) Adams, R. P., M. Habte, S. Park and M. R. Dafforn. 2004. Preliminary comparison of vetiver root essential oils from cleansed (bacteria- and fungus-free) versus non-cleansed (normal) vetiver plants. BSE 32: 1137-1144.
179. (PDF) Little, D. P., A. E. Schwarzbach, R. P. Adams and C-F. Hsieh. 2004. The circumscription and phylogenetic relationships of Callitropsis and the newly described genusXanthocyparis (Cupressaceae). Am. J. Bot. 91:1872-1881.
180. (PDF) James, S. A., S. Cordell, R. P. Adams, and C. F. Puttock. 2004. Genetic and morphological variation within Metrosideros polymorpha (Myrtaceae) populations from different habitats in Hawaii. New Zealand J. Bot. 42:263 - 270.
181. (PDF) Adams, R. P. and S. Nguyen. 2005. Infra-specific variation in Juniperus deppeana and f. sperryi in the Davis Mountains, Texas: Variation in leaf essential oils and Random Amplified Polymorphic DNAs (RAPDs). Phytologia 87(2):96-108.
182. (PDF) Adams, R. P., J. A. Morris, R. N. Pandey and A. E. Schwarzbach. 2005. Cryptic speciation between Juniperus deltoides and J. oxycedrus (Cupressaceae) in the Mediterranean. Biochem. Syst. Ecol. 33: 771-787.
183. (PDF) Adams, R. P., M. Socorro G. Elizondo, and M. G. Elizondo and E. Slinkman. 2006. A new subalpine variety of Juniperus blancoi Martinez (Cupressaceae) from Durango, Mexico. Biochem. Syst. Ecol.. 34: 205-211.
184. (PDF) Adams, R. P., K. Rushforth and S. N. Trimble. 2006. The origins of Leyland's cypresses (x Cupressocyparis leylandii) based on DNA data. Phytologia 88(1):1-16.
185. (PDF) Hosoi, M., M. Ito, T. Yagura, R. P. Adams, and H. Gisho. 2004. cDNA isolation and functional expression of myrcene synthase from Perilla frutescens. Biological and Pharmaceutical Bull. 27: 1979-1985.
186. (PDF) Adams, R. P. and A. E. Schwarzbach. 2006. A new variety of Juniperus sabina from Mongolia: J. sabina var. mongolensis. Phytologia 88 (2): 179-185.
187. (PDF) Adams, R. P., S. Nguyen and J. Liu. 2006. Geographic variation in the leaf essential oils of Juniperus sabina and var. arenaria. J. Ess. Oil Res. 18:497-502.c
188. (PDF) Adams, R. P. and S. Nguyen. 2006. The leaf essential oils of the genus Calocedrus. J. Ess. Oil Res. 18:654-658.
189. (PDF) Adams, R. P. and A. E. Schwarzbach. 2006. Infraspecific adjustments in Juniperus deppeana (Cupressaceae) Phytologia 88(3):227-232.
190. (PDF) Adams, R. P., A. E. Schwarzbach and S. Nguyen. 20006. Re-examination of the taxonomy of Juniperus flaccida var. martinezii, and var. poblana (Cupressaceae) Phytologia 88(3)233-241.
191. (PDF) Adams, R. P., S. Nguyen and N. Achak. 2006. Geographic variation in Juniperus phoenicea (Cupressaceae) from the Canary Islands, Morocco and Spain based on RAPDs analysis. Phytologia 88(3):270-278.
192. (PDF) Adams, R. P., S. Nguyen, J. A. Morris and A. E. Schwarzbach. 2006. Re-examination of the taxonomy of the one-seeded, serrate leaf marginated Juniperus of Southwestern United States and northern Mexico (Cupressaceae). Phytologia 88(3)299-309.
193. (PDF) Adams, R. P. and L. Baker. 2007. A new variety of Juniperus ashei: J. ashei Buch var. ovata R. P. Adams (Cupressaceae). Phytologia 89(1):8-23.
194. (PDF) Adams, R. P. and S. Nguyen. 2007. Post-Pleistocene geographic variation in Juniperus communis in North America. Phytologia 89(1)43-57.
195. (PDF) Adams, R. P. 2004. Using inverted repeats (RAPDs) data in systematics: Potential, problems and solutions. Phytologia 89(1):94-109.
196. (PDF) Adams, R. P., P. Thomas and K. Rushforth. 2007. The leaf essential oils of the new conifer genus, Xanthocyparis: Xanthocyparis vietnamensis and X. nootkatensis. J. Ess. Oil Res. 19:30-33.
197. (PDF) Adams, R. P., Phillip S. Beauchamp, Vasu Dev and Stephen M. Dutz. 2007. New Natural Products isolated from one-seeded Juniperus of the Southwestern United States: Isolation and occurrence of 2-ethenyl-3-methyl phenol and its derivatives. J. Ess. Oil Res. 19:146-152.
198. (PDF) Adams, R. P., A. E. Schwarzbach, S. Nguyen, J. A. Morris and J-Q. Liu. 2007. Geographic variation in Juniperus deppeana. Phytologia 89(2):132-150.
199. (PDF) Adams, R. P., A. E. Schwarzbach, S. Nguyen, J. A. Morris and J-Q. Liu. 2007. Geographic variation in Juniperus sabina L., J. sabina var. arenaria (E. H. Wilson) Farjon,J. sabina var. davurica (Pall.) Farjon and J. sabina var. mongolensis R.P. Adams. Phytologia 89(2):153-166.
200. (PDF) Adams, R. P. and T. Yanke. 2007. Kashmir lavender oil: a comparison with other Lavender oils. Perfumer & Flavorist 42:40-45.
201. (PDF) Shatar, S., R. P. Adams and W. A. Koenig. 2007. Comparative study of the essential oil of Rhodiola rosea L. from Mongolia. J. Ess. Oil Res. 19:215-217.
202. (PDF) Adams, R. P. and T. Yanke. 2007. Variation in composition and enantiomeric analyses of commercial Clary Sage oils. Perfumer & Flavorist, Sept. 32: 36-39.
203. (PDF) Adams, R. P. 2007. Juniperus maritima, the seaside juniper, a new species from Puget Sounds, North America. Phytologia 89(3):263-283.
204. (PDF) Adams, R. P., A. E. Schwarzbach, J. A. Morris, and S. Gonzalez Elizondo. 2007. Juniperus compacta, a new species from Mexico (Cupressaceae). Phytologia 89(3):361-369.
205. (PDF) Adams, R. P., Sanko Nguyen, Dennis A. Johnston, Sunghun Park, Tony L. Provin and Mitiku Habte. 2008. Comparison of vetiver root essential oils from cleansed (bacteria- and fungus-free) versus non-cleansed (normal) vetiver plants. Biochem. Syst. Ecol. 36:177-182.
206. (PDF) Shatar, Sanduin and R. P. Adams. 2001. The essential oil of Brachanthemum mongolorum Grub. from Mongolian paleo-endemic plant. J. Essent. Oil-bearing plants. 4:1-4.
207. (PDF) Adams, R. P., L. E. Baker and R. Naresh Pandey. 2008. Optimizing procedures to obtain reliable DNA fingerprinting data for use in systematic, ecological and evolutionary studies. Phytologia 90:83-96.
208. (PDF) Adams, R. P. 2008. Distribution ofJuniperus ashei var. ashei and var. ovata around New Braunfels, Texas. Phytologia 90(1):97-102.
209. (PDF) R. P. Adams, A. E. Schwarzbach and J. A. Morris. 2008. The evolution of Caribbean Juniperus (Cupressaceae): Terpenoids, RAPDs, and DNA SNPs data. Phytologia 90(1):103-119.
210. (PDF) Achak, Nadia, A. Romane, M. Alifriqui and R. P. Adams. 2008. Effect of leaf drying and geographic sources on the essential oil composition of Juniperus thurifera L. var.africana Maire from the Tensift - Al Haouz, Marrakech region. J. Ess. Oil. Res. 20:200-204.
211. (PDF) Adams, R. P. and S-F Lu. 2008. The botanical source of Chinese cedarwood oil: Cupressus funebris or Cupressaceae species? J. Ess. Oil. Res. 20:235-242.
212. (PDF) Adams, R. P. and D. Wingate. 2008. Hybridization between Juniperus bermudiana and J. virginiana in Bermuda. Phytologia 90(2):123-133.
213. (PDF) Adams, R. P. 2008. Point of View: Juniperus bermudiana: a species in crisis, can it be rescued from introduced Junipers? Phytologia 90(2):134-136.
214. (PDF) Adams, R. P. 2008. Taxonomy of Juniperus communis in North America: Insight from variation in nrDNA SNPs. Phytologia 90(2):181-197.
215. (PDF) Adams, R. P., J. A. Morris and A. E. Schwarzbach. 2008. Taxonomic study of Juniperus excelsa and J. polycarpos using SNPs from nrDNA and cp trnC-trnD plus essential oisl and RAPD data. Phytologia 90(2):208-225.
216. (PDF) Adams, R. P., J. A. Morris and A. E. Schwarzbach. 2008. Taxonomic affinity of Rushforth's Bhutan juniper and Juniperus indica using SNPs from nr DNA and cp trnC-trnD, terpenoids and RAPD data. Phytologia 90(2):233-245.
217. (PDF) Welker, Barbara J., W. Koenig, M. Pietsch and R. P. Adams. 2007. Feeding selectivity by mantled howler monkey (Alouatta palliata) in relation to leaf secondary chemistry in the tree species Hymenaea courbaril. J. Chem. Ecol. 33:1186-1196.
218. (PDF) Adams, R. P. 2008. Juniperus of Canada and the United States: Taxonomy, key and distribution. Phytologia 90(3):c255-314.
219. (PDF) Adams, R. P. 2009. The leaf essential oil of J. maritima R. P. Adams compared with J. horizontalis, J. scopulorum and J. virginiana oils. Phytologia 91(1):31-39.
220. (PDF) Adams, R. P., B. R. Ruiz, M. Nogales and S. S. Fontinha. 2009. Geographic variation and systematics of Juniperus phoenicea L. from Madeira and the Canary Islands: Analyses of volatile leaf oils. Phytologia 91(1):40-53.
221. (PDF) Adams, R. P. 2009. Analyses and taxonomic utility of the cedarwood oils of the serrate leaf junipers of the western hemisphere. Phytologia 91(1):117-139.
222. (PDF) Adams, R. P., J. A. Bartel and R. A. Price. 2009. A new genus, Hesperocyparis, for the cypresses of the new world. Phytologia 91(1):160-185.
223. (PDF) Shawl, A. S. and R. P. Adams. 2009. Rose oil an emerging cash crop for Kashmir. Perfumer and Flavorist J. 34:2-5.
224. (PDF) Adams, R. P. and J. A. Bartel. 2009. Geographic variation in the leaf essential oils of Hesperocyparis (Cupressus) abramsiana, H. goveniana and H. macrocarpa: Systematic Implications. Phytologia 91(2):226-243.
225. (PDF) R. P. Adams and J. A. Bartel. 2009. Geographic variation in Hesperocyparis (Cupressus) arizonica, and H. glabra: RAPDs analysis. Phytologia 91(2):244-250.
226. (PDF) R. P. Adams and J. A. Bartel. 2009. Infraspecific variation in Hesperocyparis goveniana and H. pygmaea: ISSRs and terpenoid data. Phytologia 91(2):277-286.
227. (PDF) R. P. Adams and J. A. Bartel. 2009. Infraspecific variation in Hesperocyparis abramsiana: ISSRs and terpenoid data. Phytologia 91(2):287-299.
228. (PDF) R. P. Adams. 2009. Variation in Juniperus durangensis and related junipers (Cupressaceae): Analysis of nrDNA and petN SNPs. Phytologia 91(2):353-358.
229. (PDF) Nadia Achak, A. Romane, M. Alifriqui and R. P. Adams. 2009. Chemical studies of the leaf essential oils of three species of Juniperus from Tensift Al Haouz-Marrakech Region (Morocco). J. Ess. Oil Res. 21:337-341.
230. (PDF) Adams, R. P., R. P. Chaudary, R. N. Pandey and L. Singh. 2009. Juniperus recurva var. uncinata, the hooked branchlet juniper, a new variety from Nepal. Phytologia 91(3): 361-382.
231. (PDF) Adams, R. P.. 2009. Variation among the smooth leaf margin Juniperus of Mexico: Analyses of nrDNA, 4CL, ABI3 and petN-psbM SNPs. Phytologia 91(3): 571-580.
232. (PDF) Adams, R. P., P. S. Beauchamp, Vasu Dev and Radha M. Bathala. 2010. The leaf essential oils of Juniperus communis varities in North America and the NMR and MS data for iso-abienol. J. Ess. Oil. Res. 22:23-28.
233. (PDF) Adams, R. P., B. Rumeu, S. S. Fontinha and M. Nogales. 2010. Geographic variation in the leaf essential oils of Juniperus cedrus Webb. & Berthol. from Madeira and the Canary Islands. Phytologia 92(1):31-43.
234. (PDF), Adams, R. P., B. Rumeu, S. S. Fontinha and M. Nogales. 2010. Speciation of Juniperus cedrus and J. maderensis in the Canary Islands and Madeira based on terpenoids and nrDNA and cp petN sequences. Phytologia 92(1):44-55.
235. (PDF) Adams, R. P., B. R. Rumeu, M. Nogales, and S. S. Fontinha. 2010. Geographic variation and systematics of Juniperus phoenicea L. Madeira and the Canary Islands: Anaylses of SNPs from nrDNA and petN-psbM DNA. Phytologia 92(1):59-67.
236. (PDF) Adams, R. P., G. Hunter, and T. A. Fairhall. 2010. Discovery and SNPs analyses of populations of Juniperus maritima on Mt. Olympus, a Pleistocene refugium? Phytologia 92(1):68-81.
237. (PDF) Adams, R. P., 2010. Screening for low-copy number gene regions in the Cupressaceae. Phytologia 92(1):82-91.
238. (PDF) Adams, R. P., A. E. Schwarzbach and J. A. Morris. 2010. Juniperus zanonii, a new species from Cerro Potosi, Mexico. Phytologia 92(1):105-117.
239. (PDF) Adams, R. P. and Vasu Dev. 2010. Synthesis and gas chromatographic/mass spectrometric analysis of angelates and tigales as aid to identification of these components in essential oils. Flav. Frag. J. 25:71-74.
239s. (PDF) Adams, R. P. and Vasu Dev. 2010 Supplement, Mass Spectra of angelates and tiglates.
240. (PDF) Shanjani, Parvin S., M. Mirza, M. Calagrai and R. P. Adams. 2010. Effects of leaf drying and harvest season on the essential oil composition from foliage and berries of Juniperus excelsa. Indust. Crops and Products 32:83-87.
241. (PDF) Adams, R. P., S. Terzioglu and T. Mataraci. 2010. Taxonomy of Juniperus oxycedrus var. spilinanus in Turkey: Leaf terpenoids and SNPs from nrDNA and petN-psbM. Phytologia 92(2):156-166.
242. (PDF) Adams, R. P. and M. E. Kaufmann. 2010. Geographic variation in the leaf essential oils of Juniperus grandis and comparison with J. occidentalis and J. osteosperma . Phytologia 92(2):167-185.
243. (PDF) Adams, R. P. 2010. Chemosystematics of Juniperus: Effects of leaf drying on essential oil composition. Phytologia 92(2):186-198.
244. (PDF) Adams, R. P. and T. A. Zanoni. 2010. The leaf essential oil of Juniperus zanonii and comparisons with the oils of J. jaliscana, J. monticola and J. saltillensis . Phytologia 92(2):256-265.
245. (PDF) Adams, R. P. and M. E. Kauffmann. 2010. Geographic variation in nrDNA and cp DNA of Juniperus californica, J. grandis, J. occidentalis and J. osteosperma(Cupressaceae). Phytologia 92(2):266-276.
246. (PDF) Shatar, S., R. P. Adams and M. Todorova. 2010. The essential oil of the genus Brachanthemum from Mongolia. J. Ess. Oil Res. 22:409-412.
247. (PDF) Mao, K, G. Hao, J-Q Liu, R. P. Adams and R. I. Milne. 2010. Diversification and biogeography of Juniperus (Cupressaceae): variable diversification rates and multiple intercontinental dispersals. New Phytologist 188:254-272.
247s. (PDF) Mao, K, G. Hao, J-Q Liu, R. P. Adams and R. I. Milne. 2010. Diversification and biogeography of Juniperus (Cupressaceae): variable diversification rates and multiple intercontinental dispersals. New Phytologist 188: 254-272. Supplement, Tables 1-4. with primer information.
248. (PDF) Adams, R. P. and L. N. Sharma. 2010. DNA from herbarium specimens: I. Correlation of DNA sizes with specimens age. Phytologia 92(3)346-353.
249. (PDF) Adams, R. P., J. A. Bartel, D. Thornburg and A. Allgood. 2010. Geographic variation in the leaf essential oils of Hesperocyparis arizonica and H. glabra. Phytologia 92(3):366-387.
250. (PDF) Adams, R. P., F. Jimenez Rodriguez, J. Hoppe and T. A. Zanoni. 2010. Discovery of a new population of Juniperus gracilior var. urbaniana from the Dominican Republic: Analyses of leaf terpenoids and SNPs from nrDNA and trnC-trnD. Phytologia 92(3):413-423.
251. (PDF) Adams, R. P. and D. Thornburg. 2010. A review of seed dispersal in Juniperus. Phytologia 92(3):424-434.
252. (PDF) Adams, R. P. 2011. Infraspecific terpenoid variation in Juniperus scopulorum: Pleistocene refugia and Post-Pleistocene recolonization. Phytologia 93(1):3-12.
253. (PDF) Adams, R. P. and D. Thornburg. 2011. Sexual change in Juniperus arizonica: facultative monecious? Phytologia 93(1):43-50.
254. (PDF) Adams, R. P. 2011. Chemosystematics of Juniperus : Effects of leaf drying on essential oil composition: II. Phytologia 93(1):51-62.
255. (PDF) Adams, R. P., C. Earle and D. Thornburg. 2011. Taxonomy of infraspecific taxa of Abies lasiocarpa: Leaf essential oils of Abies lasiocarpa, var . bifolia and var . arizonica. Phytologia 93(1):73-87.
256. (PDF) Adams, R. P. R. Lanner, M. Kauffmann and D. Thornburg. 2011. Infraspecific variation in the leaf essential oils of Abies concolor. Phytologia 93(1):107-117.
257. (PDF) Adams, R. P., C-F. Hsieh, J. Murata and A. E. Schwarzbach. 2011. Systematics of Juniperus chinensis and J. tsukusiensis from Japan and Taiwan: DNA sequencing and terpenoids. Phytologia 93(1):118-131.
258. (PDF) Adams, R. P. 2011. The taxonomic affinity of a juniper population from Colonia Pacheco, Mexico. Phytologia 93(1):132-145.
259. (PDF) Adams, R. P. and A. E. Schwarzbach. 2011. DNA barcoding a juniper: the case of the south Texas Duval county juniper and serrate junipers of North America. Phytologia 93(1):146-154.
260. (PDF) Adams, R. P. 2011. Juniperus virginiana in the Serranias del Burro Mountains, Coahuila, Mexico: A Pleistocene Relict. Phytologia 93(2):168-173.
261. (PDF) R. P. Adams, J. Murata, H. Takahashi and A. E. Schwarzbach. 2011. Taxonomy and evolution of Juniperus communis: Insight from DNA sequencing and SNPs. Phytologia 93)2): 185-196.
262. (PDF) R. P. Adams and J. Poole. 2011. Low variability of DNA fingerprints of Texas snowbells: Conservation implications. Phytologia 93(2): 198-202.
263. (PDF) Adams, R. P. R. Lanner, M. Kauffmann and D. Thornburg. 2011. Taxonomy of infraspecific taxa of Abies concolor: Leaf essential oils of Abies concolor, var. concolorandvar. lowiana Errata. Phytologia 93(2): 208-220.
264. (PDF) Adams, R. P., R. Lanner, M. Kauffmann and D. Thornburg. 2011. Taxonomy of infraspecific taxa of Abies concolor based on DNA sequences from nrDNA and four chloroplast regions. Phytologia 93(2): 221-230.
265.(PDF) Adams, R. P. 2011. Geographic variation in the leaf essential oils of Juniperus californica. Phytologia 93(2): 245-259.
266. (PDF) Adams, R. P., L. E. Baker and R. N. Pandey. 2011. Seventeen years storage of juniper and spinach leaves in alcohols: Effects on DNA. Phytologia 93(3): 283-292.
267. (PDF) Adams, R. P. and T. Matraci. 2011. Taxonomy of Juniperus oxycedrus forma yhaltirikiana in Turkey: Leaf terpenoids and SNPs from nrDNA and petN. Phytologia 93(3): 293-303.
268. (PDF) Adams, R. P. and P. S. Shanjani. 2011. Identification of the Elburz Mountains, Iran juniper as Juniperus polycarpos var. polycarpos. Phytologia 93(3): 316-321.
269. (PDF) Adams, R. P. 2011. DNA from herbarium specimens. II. Correlation of DNA degradation with humidity. Phytologia 93(3): 351-359.
270. (PDF) Adams, R. P. 2012. Geographic variation in the leaf essential oils of Juniperus grandis (Cupressaceae) II. Phytologia 94(1): 3-21.
271. (PDF) Adams, R. P. 2012. Juniperus occidentalis forma corbetii R. P. Adams, a new shrubby variant: Geographic variation in the leaf essential oils. Phytologia 94: 22-34.
272. (PDF) Adams, R. P., M. S. G. Elizondo and T. A. Zanoni. 2012. Variation in the leaf essential oils, DNA sequences and morphology in Juniperus durangensis Phytologia 94: 40-52.
273. (PDF) Adams, R. P., M. A. Arnold, A. R. King and G. C. Denny. 2012. Geographic variation in the leaf essential oils of Taxodium (Cupressacea) Phytologia 94(1): 53-70.
274. (PDF) Adams, R. P. 2012. Seasonal variation in the leaf essential oil of Taxodium distichum. Phytologia 94(1): 91-102.
275. (PDF) Adams, R. P. 2012. Juniperus pp. 138-139, in: The Jepson Manual, 2nd ed., U. Calif., Berkeley Press.
276. (PDF) Adams, R. P. 2012. Geographic variation in the leaf essential oils of Juniperus osteosperma (Cupressaceae). Phytologia 94(1): 118-132.
277. (PDF) Adams, R. P. 2012. Chemosystematics of Douglas fir (Pseudotsuga menziesii): Effects of leaf drying on essential oil composition. Phytologia 94(1): 133-138.
278. (PDF) Adams, R. P., M. A. Arnold, A. R. King and G. C. Denny. 2012. Taxodium (Cupressaceae): one, two or three species? Evidence from DNA sequences and terpenoids. Phytologia 94(2): 159-168.
279. (PDF) Adams, R. P., F. Callahan and R. Kost. 2012. Analyses of putative hybrids of Hesperocyparis glabra and H. pygmaea by leaf essential oils. Phytologia 94(2): 174-192.
280. (PDF) Adams, R. P., J. J. Vargas-Hernández, M. S. González Elizondo, D. Thornburg and F. C. Callahan. 2012. Geographic variation in the leaf essential oils of Douglas Fir (Pseudotsuga menziesii). Phytologia 94(2): 199-218.
281. (PDF) Adams, R. P. and F. Hojjati. 2012. Taxonomy of Juniperus in Iran: Insight from DNA sequencing. Phytologia 94(2): 219-227.
282. (PDF) Adams, R. P. and Y. Tsumura. 2012. Multivariate detection of hybridization using conifer terpenes I: Analysis of terpene inheritance patterns in Cryptomeria japonica F1 hybrids. Phytologia 94(2): 253-275.
283. (PDF) Adams, R. P. and A. E. Schwarzbach. 2012. Taxonomy of Juniperus section Juniperus: Sequence analysis of nrDNA and five cpDNA regions. Phytologia 94(2): 280-297.
284. (PDF) Adams, R. P. and J. W. Wright. 2012. Alkanes and terpenes in wood and leaves of Pinus jeffreyi and P. sabiniana. J. Ess. Oil Res. DOI: 10.1080/ 10412905.2012.703512.
285. (PDF) Terry, Randall G., J. A. Bartel and R. P. Adams. 2012. Phylogenetic relationships among the new world cypresses (Hesperocyparis; Cupressaceae): evidence from noncoding chloroplast DNA sequences. Plant Syst. Evol. DOI 10.1007/s00606-012-0696-3.
286. (PDF) Adams, R. P., J. P. Muir, C. A. Taylor and T. R. Whitney. 2012. Differences in chemical composition between browsed and non-browsed Juniperus ashei Buch. trees. Biochem. Syst. Ecol. 46: 73-87.
287. (PDF) Adams, R. P. and A. N. Tashev. 2012. Geographical variation in leaf oils of Juniperus deltoides from Bulgaria, Greece, Italy and Turkey. Phytologia 94(3): 310-318.
288. (PDF) Adams, R. P. and R. E. Riefner, Jr. 2012. Terpenoid fingerprinting to determine an escaped Juniperus rigida var. conferta identity. Phytologia 94(3): 334-349.
289. (PDF) Adams, R. P. and A. E. Schwarzbach. 2012. Taxonomy of the multi-seeded, entire leaf taxa of Juniperus section Sabina: Sequence analysis of nrDNA and four cpDNA regions. Phytologia 94(3): 350-368.
290. (PDF) Adams, R. P. 2012. Chemosystematics of Juniperus: Effects of leaf drying on essential oil composition III. Phytologia 94(3): 372-383.
291. (PDF) Adams, R. P. and A. E. Schwarzbach. 2012. Taxonomy of the turbinate seed cone taxa of Juniperus section Sabina: Sequence analysis of nrDNA and four cpDNA regions. Phytologia 94(3): 388-403.
292. (PDF) Adams. 2013. Chemosystematics of Juniperus: effects of leaf drying on the essential oil composition of Juniperus pinchotii. Phytologia 95(1): 10-17.
293. (PDF) Adams, R. P. and M. Stoehr. 2013. Multivariate detection of hybridization using conifer terpenes II: Analyses of terpene inheritance patterns in Pseudotsuga menziesii F1 hybrids. Phytologia 95(1): 42-57.
294. (PDF) Adams, R. P. 2013. Hybridization between Juniperus grandis, J. occidentalis and J. osteosperma in northwest Nevada I: Terpenes, Leviathan mine, Nevada. Phytologia 95(1): 58-69.
295. (PDF) Adams, R. P. 2013. K-S. Mao and J-Q. Liu. 2013. The volatile leaf oil of Juniperus microsperma and its taxonomy. Phytologia 95(1): 87-93.
296. (PDF) Adams, R. P., J. J. Vargas-Hernández, M. S. González Elizondo, G. Hunter, T. A. Fairhall, D. Thornburg and F. C. Callahan. 2013. Taxonomy of Douglas Fir (Pseudotsuga menziesii) infraspecific taxa: nrDNA, cpDNA sequences and leaf essential oils. Phytologia 95(1): 94-102.
297. (PDF) Adams, R. P. 2013. Hybridization between Juniperus grandis, J. occidentalis and J. osteosperma in northwest Nevada II: Terpenes, Buffalo Hills, Northwestern Nevada. Phytologia 95(1): 107-114.
298. (PDF) Adams, R. P. and A. E. Schwarzbach. 2013. The multi-seeded, entire leaf taxa of Juniperus section Sabina: inclusion of Juniperus microsperma. Phytologia 95(1): 118-121.
299. (PDF) Adams, R. P. and A. E. Schwarzbach. 2013. Taxonomy of the turbinate shaped seed cone taxa of Juniperus, section Sabina: Revisited. Phytologia 95(2): 122-124.
300. (PDF) Adams, R. P., A. E. Schwarzbach, K. Rushforth, R. P. Chaudary and L. N. Sharma. 2013. Analysis of decurrent-leaved Himalayan junipers: Discordance between leaf morphology and DNA bar-codes. Phytologia 95(2): 125-130.
301. (PDF) Adams R. P. 2013. Chemosystematics of Juniperus: Effects of leaf drying on the essential oil composition of Juniperus pinchotii, changes during thefirst 48 hours of drying. Phytologia 95(2): 132-137.
302. (PDF) Adams, R. P. and A. E. Schwarzbach. 2013. Taxonomy of Juniperus deppeana varieties and formas based on nrDNA (ITS), petN-psbM, trnS-trnG, trnD-trnT, trnL-trnF sequences. Phytologia 95(2): 161-166.
303. (PDF) Adams, R. P. and A. E. Schwarzbach. 2013. Taxonomy of the serrate leaf Juniperus of North America: Phylogenetic analyses using nrDNA and four cpDNA regions. Phytologia 95(2): 172-178.
304. (PDF) Adams, R. P. and A. E. Schwarzbach. 2013. Phylogeny of Juniperus using nrDNA and four cpDNA regions. Phytologia 95(2): p. 179-187.
305. (PDF) Adams, R. P. 2013. Comparison of the volatile leaf and wood oils of Pinus torreyana and var. insularis: Two isolated, narrow endemics in California. Phytologia 95(2): 188-191.
306. (PDF) Adams, R. P., A. Boratynski, M. Arista, A. E. Schwarzbach, H. Leschner, Z. Liber, P. Minissale, T. Mataraci and A. Manolis. 2013. Analysis of Juniperus phoenicea from throughout its range in the Mediterranean using DNA sequence data from nrDNA and petN-psbM: The case for the recognition of J. turbinata Guss. Phytologia 95(2): 202-209.
307. (PDF) Adams, R. P. 2013. Juniperus communis var. kelleyi, a new variety from North America. Phytologia 95(3): 215-221.
308. (PDF)Adams, R. P. 2013. Correction to Adams and Schwarzbach, Taxonomy of the multi-seeded, entire leaf taxa of the Juniperus, section Sabina: sequence analysis of nrDNA and four cp DNA regions. Phytologia 94(3): 350-366. Phytologia 95(3): 226-227.
309. (PDF) Adams, R. P., C. A. Taylor, T. R. Whitney, W. C. Stewart and J. P. Muir. 2013. Goats and deer do not use terpenoids to select or avoid browsing on Juniperus pinchotii Sudw. trees. Phytologia 95(3): 238-245.
310. (PDF) Adams, R. P. 2013. Geographic variation in the volatile leaf oils of Juniperus procera Hochst. ex. Endl. Phytologia 95(4): 269-273.
311. (PDF) Adams, R. P., A. N. Tashev, K. H. C. Baser and A. K. Christou. 2013. Geographic variation in the volatile leaf oils of Juniperus excelsa M.-Bieb. Phytologia 95(4): 279-285.
312. (PDF) Adams, R. P. and F. Hojjati. 2013. Leaf essential oils of Juniperus in central and southern Iran. Phytologia 95(4): 288.295.
313. (PDF) Adams, R. P. and A. N. Tashev. 2013. The volatile leaf oils of Juniperus communis from Bulgaria Phytologia 95(4): 302-307.
314. (PDF) Lu, X, H. Xu, Z. Li, H. Shang, R. P. Adams and K-S. Mao. 2013. Genetic diversity and conservation implications of four Cupressus species in China as revealed by microsatellite markers. Biochem. Genetics DOI 10.1007/s10528-013-9638-1.
315. (PDF) Adams, R. P., F. Hojjati and A. E. Schwarzbach. 2014. Taxonomy of Juniperus in Iran: DNA sequences of nrDNA plus three cpDNAs reveal Juniperus
polycarpos var. turcomanica and J. seravaschanica in southern Iran. Phytologia 96: 19-25.
316. (PDF) Adams, R. P., Chang-Fu Hsieh and Ge-lin Chu. 2014. The leaf essential oil of Juniperus formosana (Taiwan) compared with J. mairei (Gansu, China) and J. jackii. Phytologia 96: 28-32.
317. (PDF) Adams, R. P. 2013. Cupressaceae in: Flora of the four corners region: Vascular plants of the San Juan River Drainage. pp. 83-85. K. D. Hall, S. L. O'Kane, Jr., L. M. Reeves and A. Clifford, eds., Missouri Botanical Garden Press, St. Louis.
318. (PDF) Adams, R. P. , D. Thornburg and M. Corbet. 2014. The incidence of filled and empty seeds in Juniperus of the western United States. Phytologia 96(2): 47-58.
319. (PDF) Adams, R. P. 2014. Morphological comparison and key to Juniperus deltoides and J. oxycedrus. 2014. Phytologia 96(2): 58-62.
320. (PDF) Adams, R. P., M. M. Skopec and J. P. Muir. 2014. Comparison of leaf terpenoids and tannins in Juniperus monosperma from woodrat (Neotoma stephensi) browsed and non-browsed trees. Phytologia 96(2): 63-70.
321. (PDF) Adams, R. P., J. A. Bartel, R. Terry, F. Callahan and J. Bisbee. 2014. Taxonomy of Hesperocyparis montana, H. revealiana and H. stephensonii: DNA sequencing and leaf essential oils analyses. Phytologia 96(2): 71-83.
322. (PDF) Adams, R. P. 2014. Snowpack-forced browsing by deer onto Scots pine (Pinus sylvestris): Selection for low volatile leaf terpenoids concentrations for browsing. Phytologia 96(2): 84-88.
323. (PDF) Adams, R. P., B. Douaihy, M. D. Dagher-Kharrat, A. E. Schwarzbach and V. Farzaliyev. 2014. Geographic variation in nrDNA and four cpDNAs sequences of Juniperus excelsa and J. polycarpos in Greece, Turkey. Lebanon and Azerbaijan. Phytologia 96(2): 89-95.
324.(PDF) Adams, R. P., B. Douaihy, M. D. Dagher-Kharrat, V. Farzaliyev, Alexander N. Tashev, K. H. C. Baser and A. K. Christou. 2014. Geographic variation in the volatile leaf oils of Juniperus excelsa and J. polycarpos. Phytologia 96(2): 96-106.
325. (PDF) Adams, R. P., J. Altarejos and Montserrat Arista. 2014. Geographic variation in the volatile leaf oils J. phoenicea var. phoenicea from throughout its range. Phytologia 96(2): 110-116.
326. (PDF) Adams, R. P., A. N. Tashev and A. E. Schwarzbach. 2014. Variation in Juniperus communis trees and shrubs from Bulgaria: analyses of nrDNA and cpDNA regions plus leaf essential oil. Phytologia 96(2): 124-129.
327. (PDF) Whitney, T. R., C. J. lupton, J. P. Muir, R. P. Adams and W. C. Stewart. 2014. Effects of using ground redberry juniper and dried distillers grains with solubles in lamb feedlot diets: Growth, blood serum, fecal, and wool characteristics. J. Animal Sci. 92: 1119-1132.
328. (PDF) Wenhu, G., F. Grewe, A. Cobo-Clark, W. Fan, Z-L. Duan, R. P. Adams, A. E. Schwarzbach and J. P. Mower. 2014. Predominant and substoichiometric isomers of the plastid genome coexist within Juniperus plants and have shifted multiple time during Cupressophyte evolution. Genome Biol. Evol. 6: 580-590.
329. (PDF) Adams, R. P., J. H. Russell, G. Hunter, T. A. Fairhall, K. Dillman and M. Corbet. 2014. The foliage terpenoids of Callitropsis nootkatensis: Comparison of oils from cultivated and natural trees. Phytologia 96(2): 135-148.
330. (PDF) Adams, R. P., M. Arista, A. Boratynski, H. H. Houari, H. Leschner, Z. Liber, P. Minissale, S. Sciandrello and T. Mataraci. 2014. Geographic variation in the leaf essential oil of Juniperus turbinata from throughout its range in the Mediterranean. Phytologia 96(3): 149-158.
331. (PDF) Adams, R. P., M. A. Arnold, A. R. King, J. J. Griffin, J. K. Iles, G. W. Knox, G. V. McDonald and G. Niu. 2014. Environmentally induced variation in the leaf volatile terpenes of Taxodium distichum (L.) Rich. (Cupressaceae). Phytologia 96(3): 167-177.
332. (PDF) Adams, R. P., M. M. Skopec, K. D. Kohl and M. D. Dearing. 2014. Comparison of volatile leaf terpenoids from Juniperus monosperma and J. osteosperma leaves: intact, ground and exposed to ambient temperature. Phytologia 96(3): 207-217.
333. (PDF) Adams, R. P., A. Al-Farsi and A. E. Schwarzbach. 2014. Confirmation of the southern-most population of Juniperus seravschanica in Oman by DNA sequencing of nrDNA and four cpDNA regions. Phytologia 96(3): 218-224.
334. (PDF) Adams, R. P., J. Altarejos, M. Arista and A. E. Schwarzbach. 2014. Geographic variation in J. phoenicea var. phoenicea from throughout its range: Analysis of DNA sequence data from nrDNA plus 4 cp regions. Phytologia 96(3): 247-251.
335. (PDF) Adams, R. P., A. Weerasooriya and M. Gao. 2014. Comparison of volatile leaf terpenoids from Lippia dulcis (Verbenaceae) obtained by steam distillation and pentane liquid extraction. Phytologia 96(3): 252-259.
336. (PDF) Adams, R. P. and F. Callahan. 2014. The leaf essential oils of Picea chihuahuana Martinez and P. martinezii Patterson (Pinaceae). Phytologia 96(3): 260-263.
337. (PDF) Kou, Y-X., H-Y. Shang, K-S. Mao, Z-G. Li, K. Rushforth and R. P. Adams. 2014. Nuclear and cytoplasmic DNA sequence data further illuminates the genetic composition of Leyland cypress. J. Am. Hort. Sci. 139: 558-566.
338. (PDF) Adams, R. P., M. Kauffmann and F. Callahan. 2015. The leaf essential oil of Abies grandis (Doug. ex D. Don) Lindl. (Pinaceae): revisited 38 years later. Phytologia 97(1): 1-5.
339. (PDF) Adams, R. P., V. Farzaliyev, A. N. Tashev and A. E. Schwarzbach. 2015. Juniperus communis f. pygmaea in Azerbaijan: analyses of nrDNA and cpDNA regions. Phytologia 97(1): 6-11.
340. (PDF) Adams, R. P., G. M. Ferguson and David Thornburg. 2015. First comprehensive report on the composition of the leaf volatile terpenoids of Pinus arizonica Engelm. and P. ponderosa var. brachyptera Engelm. Phytologia 97(1): 45-50.
341. (PDF) Adams, R. P. 2015. Allopatric hybridization and introgression between Juniperus maritima R. P. Adams and J. scopulorum Sarg.: Evidence from nuclear and cpDNA and leaf terpenoids. Phytologia 97(1): 55-66.
342. (PDF) Terry, R. G. and R. P. Adams. 2015. A molecular re-examination of phylogenetic relationships among Juniperus, Cupressus, and the Hesperocyparis-Callitropsis-Xanthocyparis clades of Cupressaceae. Phytologia 97(1):. 67-75.
343. (PDF) Adams, R. P., T. A. Fairhall, G. Hunter and C. Parker. 2015. First comprehensive report on the composition of the leaf volatile terpenoids of Pinus contorta vars. contorta, latifolia and murrayana. Phytologia 97(1): 76-81.
344. (PDF) Adams, R. P. and R. E. Riefner, Jr. 2015. Geographic variation in the leaf essential oils of Juniperus grandis (Cupressaceae) III. San Gabriel Mtns. population. Phytologia 97(2): 94-102.
345. (PDF) Adams, R. P., M. Rhanem and A. E. Schwarzbach. 2015. Juniperus communis in Morocco: analyses of nrDNA and cpDNA regions. Phytologia 97(2): 123-128.
346. (PDF) Thornburg, D. and R. P. Adams. 2015. A photographic essay on the development of seed cones in Juniperus arizonica. Phytologia 97(2): 129-131.
347. (PDF) Adams, R. P. and T. A. Zanoni. 2015. The volatile leaf oils of Juniperus flaccida Schltdl., J. martinezii Perez de la Rosa and J. poblana (Mart.) R. P. Adams, re-examined. Phytologia 97(2): 145-151.
348. (PDF) Sang, Li, Dong, R P Adams, G Miehe, L Opgenoorth and K-S Mao. 2015. Evolutionary origin and demographic history of an ancient confier (Juniperus microsperma) in the Qinghai-Tibetan Plateau. Scientific Reports 5.10216, DOI 10.1038/srep10216. 15 pgs.
349. (PDF) Adams, R. P. and A. E. Schwarzbach. 2015. A new, flaccid, decurrent leaf variety of Juniperus poblana from Mexico: J. poblana var. decurrens R. P. Adams & S. González. Phytologia 97(3): 152-163.
350. (PDF) Adams, R. P., S. Carver and M. Arnold. 2015. Comprehensive analysis of leaf volatile oil of Borrichia frutescens (L.) DC and preliminary analysis of variation along the Texas gulf coast. Phytologia 97(3): 164-169.
351. (PDF) Adams, R. P. 2015. Allopatric hybridization and introgression between Juniperus maritima R. P. Adams and J. scopulorum Sarg. II. Additional Evidence from nuclear and cpDNA genes in Montana, Wyoming, Idaho and Utah. Phytologia 97(3): 189-199.
352. (PDF) Sofia, S., M. Perez-Bonilla, R. P. Adams and Joaquin Altarejos. 2015. Phenolic components and antioxidant activity of wood extracts from 10 main Spanish olive cultivars. J. Ag. and Food Chem. (JAFC) 63: 6493-6500.
353. (PDF) Adams, R. P. and M. Corbet. 2015. Geographic variation in the volatile leaf oil of Juniperus occidentalis. II. Analysis from throughout its geographic range. Phytologia 97(4): 265-270.
354. (PDF) Adams, R. P. et al. 2015. nrDNA and petN-psbM sequencing reveals putative Juniperus oxycedrus L. from Azerbaijan, Bulgaria, Cyprus and Israel to be J. deltoides R. P. Adams. Phytologia 97(4): 286-290.
355. (PDF) Stewart, W. C., T. R. Whitney, E. J. Scholljergerdes, H. d. Naumann, N. M. Cherry, J. P. Muir, B. D. Lambert, J. W. Walker, R. P. Adams, K. D. Welch, D. R. Gardner and R. E. Estell. 2015. Effects of Juniperus species and stage of maturity on nutritional, in vitro digestibility, and plant secondary compound characteristics. J. Animal Sci. 93: 4034-4047.
356. (PDF) Adams, R. P., S. Gucel, T. Mataraci, A. N. Tashev, B. Douaihy and M. D. Dagher-Kharrat, V. Farzaliyev and A. E. Schwarzbach. 2016. Geographic variation in nrDNA and four cpDNA regions of Juniperus excelsa: Analysis of new records from Bulgaria, Cyprus and southwestern Turkey. Phytologia 98(1):1-7.
357. (PDF) Adams, R. P., A. Gilman, M. Hickler, B. Sheets and J. Vanderhorst. 2016. First molecular evidence that Juniperus communis var. communis from the eastern hemisphere is growing in the northeastern United States. Phytologia 98(1):8-16.
358. (PDF) Adams, R. P., M. M. Skopec and J. P. Muir. 2016. Comparison of leaf terpenoids and tannins in Juniperus osteosperma from woodrat (Neotoma stephensi) browsed and non-browsed trees. Phytologia 98(1):17-25.
359. (PDF) Adams, R. P., A. TeBeest, W. Holmes and N. Taylor.2016. Survey of non-polar extractables (bio-crude) from Grindelia ciliata (Nuttall) Sprengel.
Phytologia 98(1):30-36.
360. (PDF) Adams, R. P. and Asako Matsumoto. 2016. Inheritance of nrDNA in artificial hybrids of Cryptomeria japonica cv. Haara and C. japonica cv. Kumotoshi.
Phytologia 98(1):37-41.
361. (PDF) Adams, R. P., A. E. Schwarzbach and A. N. Tashev. 2016. Chloroplast capture by a new variety, Juniperus sabina var. balkanensis R. P. Adams and A. N. Tashev, from the Balkan peninsula: A putative stabilized relictual hybrid between J. sabina and ancestral J. thurifera. Phytologia 98(2): 100-111.
362. (PDF) Adams, R. P.. 2016. Geographical variation in the leaf volatile oils of Grindelia ciliata and G. adenodonta. Phytologia 98(2): 112-117.
363. (PDF) Adams, R. P., A. M. Powell and S. Powell. 2016. Comparison of volatile oils of Juniperus coahuilensis in fresh seed cones vs. cones in fresh grey fox scat. Phytologia 98(2): 119-127.
364. (PDF) Adams, R. P., M. Armagan, A. Boratynski, B. Douaihy, M. D. Dagher-Kharrat, V. Farzaliyev, S. Gucel, T. Mataraci, A. N. Tashev and A. E. Schwarzbach. 2016. Evidence of relictual introgression or incomplete lineage sorting in nrDNA of Juniperus excelsa and J. polycarpos in Asia Minor.
Phytologia 98(2): 146-155.
365. (PDF) Adams, R. P. and d. Thornburg. 2016. A survey of percent-filled and empty seeds in multiple years observations of Juniperus arizonica and
J. osteosperma. Phytologia 98(3): 164-169.
366. (PDF) Terry, R. G., M. I. Pyne, J. A. Bartel and R. P. Adams. 2016. A molecular biogeography of the New World cypresses (Callitropsis, Hesperocyparis; Cupressaceae). Plant Syst. Evol. DOI 10.1007/s00606-016-1308-4.
367. (PDF) Adams, R. P. 2016. Juniperus arizonica (R. P. Adams) R. P. Adams, new to Texas. Phytologia 98(3):179-185.
368. (PDF) Adams, R. P., M. S. Gonzalez-Elizondo, M. Gonzalez-Elizondo, J. Sirotnak and G. M. Ferguson. 2016. Geographic variation in the leaf essential oils of Hesperocyparis in Arizona, New Mexico, Texas and Mexico. Phytologia 98(3): 186-198.
369. (PDF) Adams, R. P. and P. Oliveira. 2016. Comparison of intensely sweet volatile leaf oils of Lippia dulcis (Verbenaceae) with low and high camphor from Brazil and Mexico. Phytologia 98: 207-212.
370. (PDF) Adams, R. P. and A. K. TeBeest. 2016. The effects of gibberellic acid (GA3), Ethrel, seed soaking and pre-treatment storage temperatures on seed germination of Helianthus annuus and H. petiolaris. Phytologia 98: 213-218.
371. (PDF) Adams, R. P. 2016. Two new cases of chloroplast capture in incongruent topologies in the Juniperus excelsa complex: J. excelsa var. turcomanica comb. nov. and J. excelsa var. seravschanica comb. nov. Phytologia 98: 219-231.
372. (PDF) Adams, R. P., M. Miller and C. Low. 2016. Inheritance of nrDNA in artificial hybrids of Hesperocyparis arizonica x H. macrocarpa. Phytologia 98: 277-283.
373. (PDF) Adams, R. P., A. K. TeBeest, B. Vaverka and C. Bensch. 2016. Ontogenetic variation in pentane extractable hydrocarbons from Helianthus annuus. Phytologia 98: 290-297.
374. (PDF) Adams, R. P., A. K. TeBeest, W. Holmes, J. A. Bartel, M. Corbet and D. Thornburg. 2017. Geographic variation in pentane extractable hydrocarbons in natural populations of Helianthus annuus (Asteraceae, Sunflowers). Phytologia 99: 1-10.
375. (PDF) Adams, R. P., A. Boratynski, T. Mataraci, A. N. Tashev and A. E. Schwarzbach. 2017. Discovery of Juniperus sabina var. balkanensis R. P. Adams and A. N. Tashev in southwestern Turkey. Phytologia 99: 22-31.
376. (PDF) Adams, R. P. and A. K. TeBeest. 2017. The effects of different concentrations of gibberellic acid (GA3) on seed germination of Helianthus annuus and H. petiolaris Phytologia 99: 32-35.
377. (PDF) Adams, R. P. 2017. Multiple evidences of past evolution are hidden in nrDNA of Juniperus arizonica and J. coahuilensis populations in the trans-Pecos, Texas region. Phytologia 99: 38-47.
378. (PDF) Adams, R. P., J. A. Bartel and T. Mataraci. 2017. Comparison the leaf essential oils of Cupressus sempervirens and cv. stricta from Cyprus, Montenegro, Turkey and the United States. Phytologia 99: 48-53.
379. (PDF) Adams, R. P., A. K. TeBeest, J. Frelichowski, L. L. Hinze, R. G. Percy, M. Ulloa and J. Burke. 2017. Survey of Cotton (Gossypium sp.) for non-polar, extractable hydrocarbons for use as petrochemical feedstocks. Phytologia 99: 54-61.
380. (PDF) Adams, R. P., M. Socorro Gonzalez-Elizondo, Martha Gonzalez-Elizondo, David Ramirez Noy and Andrea E. Schwarzbach. 2017. DNA sequencing and taxonomy of unusual serrate Juniperus from Mexico: Chloroplast capture and incomplete lineage sorting in J. coahuilensis and allied taxa. Phytologia 99: 62-73.
381. (PDF)Adams, R. P., T. Mataraci and J. A. Bartel. 2017. Comparison the leaf essential oils of Cupressus sempervirens cv. stricta cultivated in California and Turkey. Phytologia 99(2): 89-94.
382. (PDF)Adams, R. P., A. K. TeBeest, W. Holmes, J. A. Bartel, M. Corbet, C. Parker and D. Thornburg. 2017. Geographic variation in volatile leaf oils (terpenes) in natural populations of Helianthus annuus (Asteraceae, Sunflowers). Phytologia 99(2): 130-138
383. (PDF)Adams, R. P., A. K. TeBeest, T. Meyeres and C. Bensch. 2017. Genetic and environmental influences on the yields of pentane extractable hydrocarbons of Helianthus annuus (Asteraceae, Sunflowers). Phytologia 99(2): 186-190.
384. (PDF) Sigmon, B. A., R. P. Adams and J. P. Mower. 2017. Complete chloroplast genome sequencing of vetiver grass (Chrysopogon zizanoides) identifies
markers that distinguish the non-fertile 'Sunshine' cultivar from other accessions. Industrial Crops and Products 108: 629-635.
385. (PDF) Adams, R. P., M. Socorro Gonzalez-Elizondo and Martha Gonzalez-Elizondo. 2017. Re-examination of the volatile leaf oils of Juniperus flaccida, J. martinezii, and J. poblana. Pytologia 99(3):191-199.
386. (PDF) Adams, R. P., A. K. TeBeest, M. Ulloa, T. Witt, John Burke, J. Frelichowski and L. L. Hinze. 2017. Comparison of hydrocarbon yields in cotton from field grown vs. greenhouse grown plants. Phytolgia 99(3): 200-207.
387. (PDF) Adams, R. P. and M. Corbet. 2017. Key for the identification of J. occidentalis and J. o. forma corbetii. Phytologia 99(4): 238-240.
388. (PDF) Adams, R. P, A. Boratynski, M. D. Dagher-Kharrat, H. V. Leschner, T. Mataraci and A. E. Schwarzbach. 2017 Geographic variation in Juniperus drupacea: DNA sequencing and volatile leaf oils: Further evidence of putative Pleistocene genetic isolation between Europe and Asia. Phytologia 99(4): 249-257.
389. (PDF) Adams, R. P. and A. K. TeBeest. 2018. Comparison of leaf hydrocarbon yields from commercial cotton, FiberMax 1320 treated with growth regulator (Stance®) vs. non-treated plants. Phytologia 100(1): 1-5.
390. (PDF) Adams, R. P., Mauricio Ulloa, Travis Witt and John Burke. 2018. Comparison of hydrocarbon yields in four cotton from field grown accessions: dryland vs. irrigated. Phytologia 100(1): 6-11
391. (PDF) Adams, R. P., M. Socorro González-Elizondo, Martha González-Elizondo and Andrea E. Schwarzbach. 2018..The Juniperus flaccida-J. poblana complex revisited: insights from molecular and oil analysis. Phytologia 100(1): 19-26.
392. (PDF) Adams, R. P., J. Frelichowski and L. L. Hinze and M. Ulloa. 2018 Survey of cotton (Gossypium sp.) for non-polar, extractable hydrocarbons for use as petrochemicals and liquid fuels. Phytologia 100(1): 37-44.
393. (PDF) Adams, R. P., T. Mataraci and A. N. Tashev. 2018. The composition of the leaf essential oils of J. sabina var. balkanensis: chemotypes high in trans-sabinyl acetate and methyl eugenol discovered in three natural populations. Phytologia 100(1): 45-50.
394. (PDF) Adams, R. P., A. K. TeBeest, S. McNulty, W. H. Holmes, J. A. Bartel, M. Corbet, C. Parker, D. Thornburg and K. Cornish. 2018. Geographic variation in natural rubber yields in natural populations of Helianthus annuus (Asteraceae, Sunflowers). Phytologia 100(1): 62-70.
395. (PDF) Bartel, J. A. and R. P. Adams. 2018. Seed cone volume, a new methodology for a metric to differentiate Hesperocyparis (western cypress, Cupressaceae) taxa. Phytologia 100(1): 111-116.
396. Adams, R. P., A. Boratynski, K. Marcysiak, F. Roma-Marzio, L. Peruzzi, T. Mataraci, A. N. Tashev and S. Siljak-Yakovlev. 2018. Discovery of Juniperus sabina var. balkanensis R. P. Adams & Tashev in Macedonia, Bosnia-Herzegovina, Croatia and Central and Southern Italy and relictual polymorphisms found in nrDNA. Phytologia 100(2): 117-127.
397. Adams, R. P., S. Johnson, A. J. Coombes and L. Camaño, M. Socorro González-Elizondo, Martha González-Elizondo. 2018. Preliminary examination of hybridization and introgression between Juniperus flaccida and J. poblana: nrDNA and cpDNA sequence data. Phytologia 100(2): 145-152.
398. Adams, R. P., Matt Lavin and Gerald P. Seiler. 2018. Geographic variation in hexane extractable hydrocarbons in natural populations of Helianthus annuus (Asteraceae, Sunflowers) II. Phytologia 100(2): 153-160.
399. Adams, R. P., Matt Lavin, Steve Hart, Max Licher and Walter Holmes. 2018. Screening hydrocarbon yields of sunflowers: Helianthus maximiliani and H. nuttallii (Asteraceae). Phytologia 100(2): 161-166.
400. Zhu, A., Weishu Fan, R. P. Adams and J. P. Mower. 2018. Phylogenomic evidence for ancient recombination between plastid genomes of the Cupressus-Juniperus-Xanthocyparis complex (Cupressaceae). BMC Evolutionary Biology 18:137, doi.org/10.1186/s12862-018-1258-2.
401. Adams, R. P. and S. T. Johnson. 2018. The effects of methyl jasmonate on the growth and yields of hydrocarbons in Helianthus annuus (Asteraceae, Sunflowers). Phytologia 100(3): 177-182.
402. Adams, R. P., P. Farhat, L.Shuka and S. Silak-Yakovlev. 2018. Discovery of Juniperus sabina var. balkanensis R. P. Adams and A. N. Tashev in Albania and relictual polymorphisms found in nrDNA. Phytologia 100(3): 187-194.
403. Hojjati, F., Shahrokh Kazempour-Osaloo, Robert P. Adams and Mostafa Assadi. 2018. Molecular phylogeny of Juniperus in Iran with special reference to the J. excelsa complex, focusing on J. seravschanica. Phytotaxon 375(2):135-157.
404. Adams, R. P. and S. T. Johnson. 2018. The effects growth regulators on the growth and yields of hydrocarbons in Cotton (Gossypium). Phytologia 100(4): 195-198.
405. Adams, R. P., A. K. TeBeest, M. Ulloa, T. Witt, J. Burke, B. Scow, J. Frelichowski and L. L. Hinze. 2018. Comparison of hydrocarbon yields in SA-2269 cotton grown in four test plots in Texas and Utah. Phytologia 100(4): 199-204.
406. Adams, R. P. 2018. Evolution of dioecious/ monecious taxa in Juniperus, contrasted with Cupressus, Hesperocyparis, Callitropsis and Xanthocyparis (Cupressaceae). Phytologia 100(4): 248-255.
407. Adams, R. P. 2018. Juniperus of Canada and the United States: Taxonomy, Key and Distribution. Lundelia 21: 1-34.
408. Adams, R. P. and S. T. Johnson. 2019. The effects of plant growth regulators on the growth and yields of hydrocarbons in Helianthus annuus cv. Munchkin (Asteraceae, Sunflowers). Phytologia 101(1): 19-24.
409. Adams, R. P., F. Bartolucci, F. Conti, T. Mataraci and A. N. Tashev. 2019. The composition of the leaf essential oils of J. sabina var. balkanensis: comparison between oils from central Italy with oils from Bulgaria, Greece and Turkey. Phytologia 101(1): 38-45.
410. Adams, R. P., S. T. Johnson, M. Miller, C. Low and A. E. Schwarzbach. 2019. Inheritance of single copy nuclear genes (SCNGs) in artificial hybrids of Hesperocyparis arizonica x H. macrocarpa: Potential for utilization in the detection of hybridization in natural populations. Phytologia 101(1): 58-66.
411. Adams, R. P. and A. N. Tashev. 2019. Comparison of the leaf volatile terpenoids of Pinus mugo Turra from Bulgaria. Phytologia 101(1): 74-80.
412. Farhat, P., S. Siljak-Yakovlev, R. P. Adams, T. Robert and M. B. Dagher-Kharrat. 2019. Genome size variation and polyploidy in the geographical range of Juniperus sabina L. (Cupressaceae). Botany Letters DOI: 10.1080/23818107.2-19.1613262
413. Farhat, P., O. Hidalgo, T. Robert, S. Siljak-Yakovlev, I. J. Leitch, R. P. Adams, and M. B. Dagher-Kharrat. 2019. Polyploidy in the conifer genus Juniperus: an unexpectedly high rate. Frontiers in Plant Science 10:676. doi: 10.3389/pls.2019.00676.
414. Adams, R. P. and A. N. Tashev. 2019. Mass Spectral identification and quantitation of Single Ion Chromatography of unresolved limonene, sylvestrene and β-phellandrene in the leaf volatile terpenoids of Pinus peuce (Bulgaria) and comparison with oils from other regions. Phytologia 101(2):120-130.
415. Adams, R. P. 2019. Inheritance of chloroplasts and mitochondria in Conifers: A review of paternal, maternal, leakage and facultative inheritance. Phytologia 101(2): 134-138.
416. Adams, R. P., S. T. Johnson, J. Anderson, K. Rushforth, P. Farhat, N. Valentin and Sonja Siljak-Yakovlev. 2019. The origin of Juniperus xpfitzeriana, an allo-tetraploid hybrid of J. chinensis x J. sabina. Phytologia 101(2): 164-174.
417. Hojjati, F., R.P. Adams and R. G. Terry. 2019. Discovery of chloroplast capture in Juniperus excelsa complex by multi-locus phylogeny. Phytotaxa doi.org/10.11646/phytotaxa.413.1.2.
418. Potts, D. T. and R. P. Adams. 2019. The Elymaean bratus: A contribution to the phytohistory of Arsacid Iran. Afarin Nameh 2091: 31-38.
419. Johnson, S. T., S. Theobald and R. P. Adams. 2019. The effects of plant growth regulator (methyl jasmonate), salt (NaCl) stress and nutrient deficiency on biomass and hydrocarbon yields in Helianthus annuus cv. Munchkin (Asteraceae, Sunflowers). Phytologia 101(3): 194-199.
420. Adams, R. P. and V. Farzaliyev . 2019 Composition of the leaf volatile terpenoids of Pinus eldarica Medw. from Azerbaijan compared with P. brutia Ten. leaf essential oil. Phytologia 101(3): 200-207.
421. Skopec, M. M., R. P. Adams and J. P. Muir. 2019. Terpenes may serve as feeding deterrents and foraging cues for mammalian herbivores. J. Chem. Ecol. 21 Nov. 2019, doi.org/10.1007/s10886-019-01117-w.
422. Adams, R. P., S. T. Johnson and G. J. Seiler. Screening hydrocarbon yields of sunflowers: Helianthus maximiliani, H. grosseserratus H. nuttallii, and H. tuberosus in the North Dakota-Minnesota-South Dakota area. Phytologia 101(4): 208-217.
423. Adams, R. P. and M. Espeut. 2020. Hybridization and introgression between Juniperus communis var. saxatilis and var. hemispherica in the Pyrenees Mountains, France. Phytologia 102(1): 9-13.
424. Adams, R. P. M. Socorro González-Elizondo and George M. Ferguson. 2020. Allopatric hybridization and introgression between Juniperus scopulorum Sarg. and Juniperus blancoi Mart. in northern Mexico: Unidirectional gene flow. Phytologia 102(1): 14-26.
425. Guo, W., A. Zhu, W. Fan, R. P. Adams and J. P. Mower. 2020. Extensive shifts from cis- to trans-splicing of gymnosperm mitochondrial introns. Molec. Biol. & Evol. doi.org/10.1093/molbev/msaa029.
426. Adams, R. P., J-L. Li and K-S Mao. 2020. The composition of the volatile leaf oils (terpenoids) of Cupressus chengiana. Phytologia 102(2): 41-54.
427. Adams, R. P., S. T. Johnson and A. E. Schwarzbach. 2020. Long distance gene flow facilitated by bird-dispersed seeds in wind-pollinated species: A story of hybridization and introgression between Juniperus ashei and J. ovata told by nrDNA and cpDNA. Phytologia 102(2): 55-74.
428. Adams, R. P., S. T. Johnson, C. S. Mendias and J. Altarejos. 2020. Hybridization and introgression between Juniperus communis var. saxatilis and var. hemispherica in the Sierra de Baza Mountains, Spain. Phytologia 102(2): 83-87.
429. Adams, R. P., A. Averett, T. Ayers, F. Barrie, M. Blackwell, W. H. Blackwell, M. W. Bierner, K. Clary, P. G. Delprete, W. Elisens, D. Irwin, M. Lavin, D. Northington, R. Olmstead, M. Powell, S. P. Rankin, P. H. Raven, H. Robinson, R. Scott, J. L. Strother, T. F. Stuessy, S. Tomb, B. L. Turner II, M. Warnock Turner, J. Walker and G. Yatskievych. 2020. Obituary and Tribute to Billie L. Turner: Botanist, Teacher, Mentor, Philosopher, Friend. Phytologia 102(2): 88-105.
430. Adams, R. P., S. T. Johnson, J. Anderson, K. Rushforth, N. Valentin and S. Sijak-Yakovlev. 2020. Nuclear and chloroplast DNAs reveal diverse origins of J. chinenis cultivars from Windsor Gardens, UK. Part 2 of 3. Phytologia 102(3):106-115.
431. Adams, R. P., A. N. Tashev and N. Tashev. 2020. The leaf volatile terpenoids of Pinus heldreichii Christ from Bulgaria and comparisons with Greece and Montenegro-Serbia oils, and P. leucodermis oil, Italy. Phytologia 102(3): 124-130.
432. Adams, R. P., S. T. Johnson, R. D. Worthington and G. M. Ferguson. 2020. Hybridization between serrate leaf Juniperus monosperma and smooth leaf J. scopulorum in the Guadalupe Mountains, NM, USA: evidence from DNA sequencing and leaf essential oils. Phytologia 102(3): 131-142.
433. Adams, R. P., F, Pena, E. Wilcox and B. Scow. 2020. The effects extreme alkaline soil on biomass and hydrocarbon yields in Helianthus annuus cv. Munchkin, Firecracker and Little Becka (Asteraceae, Sunflowers). Phytologia 102(3): 143-149.
434. Adams, R. P., S. T. Johnson, J. Anderson, K. Rushforth, N. Valentin, A. E. Schwarzbach and S. Sijak-Yakovlev. 2020. Nuclear and chloroplast DNAs reveal diverse origins and mis-identifications of Juniperus cultivars from Windsor Gardens, UK, Part 3 of 3. Phytologia 102(3): 150-161.
435. Farhat, P., N. Takvorian, M. Avramidou, L. Garruard, R. P. Adams, S. Siljak-Yakovlev, M. B. Dagher Kharrat and T. Robert. 2020. First evidence for allotriploid hybrids between Juniperus thurifera and J. sabina in a sympatric area in the French Alps. Ann. Forest Sci. (2020) 77.93, https;//doi.org/10.1007/s13595-020-00969-7