Abel, E. L. 1980. Marihuana: the first twelve thousand years. Plenum Press, New York.

Ainsworth, C. 2000. Boys and girls come out to play: the molecular biology of dioecious plants. Annals of Botany 86: 211–221.

Anderson, E. 1954. Plants, life, and man. Melrose, London.

Andersson, M. S. & M. C. de Vicente. 2010. Gene flow between crops and their wild relatives. Johns Hopkins University Press, Baltimore.

Anonymous. 1822. Galerie industrielle. Eymery, Paris.

———. 1933. Discovery of sexuality in plants. Nature 131: 392–392.

———. 2006. Medical marijuana: reefer madness, marijuana is medically useful, whether politicians like it or not. The Economist 379(8475): 83–84.

Anstee, D. J. 2010. The relationship between blood groups and disease. Blood 115: 4635–4643.

Arendt, J. & D. Reznick. 2007. Convergence and parallelism reconsidered: what have we learned about the genetics of adaptation. Trends in Ecology and Evolution 23: 26–32.

Armentano, P. 2013. Should per se limits be imposed for cannabis? Equating cannabinoid blood concentrations with actual driver impairment: practical limitations and concerns. Humboldt Journal of Social Relations 35: 45–55.

Ash, A. L. 1948. Hemp: production and utilization. Economic Botany 2: 158–169.

Ashton, J. C. 2012. Synthetic cannabinoids as drugs of abuse. Current Drug Abuse Reviews 5: 158–168.

Atal, C. K. 1959. Sex reversal in hemp by application of gibberellin. Current Science 28: 408–409.

Avico, U., R. Pacifici & P. Zuccaro. 1985. Variations of tetrahydrocannabiol content in cannabis plants to distinguish the fibre-type from drug-type plants. Bulletin on Narcotics 37(4): 61–65.

Baker, H. G. 1974. The evolution of weeds. Annual Review of Ecology and Systematics 5: 1–34.

Barrett, S. C. H. 1982. Genetic variation in weeds. Pp 73–98. In: R. Charudattan & H. Walker (eds). Biological control of weeds with plant pathogens. Wiley, New York.

Bawa, K. S. 1980. Evolution of dioecy in flowering plants. Annual Review of Ecology and Systematics 11: 15–39.

Bazzaz, F. A., D. Dusek, D. S. Seigler & A. W. Haney. 1975. Photosynthesis and cannabinoid content of temperate and tropical populations of Cannabis sativa. Biochemical Systematics and Ecology 3: 15–18.

Beutler, J. A. & A. H. Der Marderosian. 1978. Chemotaxonomy of Cannabis I. Crossbreeding between Cannabis sativa and C. ruderalis, with analysis of cannabinoid content. Economic Botany 32: 387–394.

Bócsa, I. 1998. Genetic improvement: conventional approaches. Pp 153–184. In: P. Ranalli (ed). Advances in hemp research. Food Products Press (of Haworth Press), London.

——— & M. Karus. 1998. The cultivation of hemp: botany, varieties, cultivation and harvesting. Hemptech, Sebastopol.

———, M. Máthé & L. Hangyel. 1997. Effect of nitrogen on tetrahydrocannabinol (THC) content in hemp (Cannabis sativa L.) leaves at different positions. Journal of the International Hemp Association 4(2): 80–81.

Bohlmann, F. & E. Hoffmann. 1979. Cannabigerol-ähnliche Verbindungen aus Helichrysum umbraculigerum. Phytochemistry 18: 1371–1374.

Borlaug, N. E. 2000. The green revolution revisited and the road ahead. Norwegian Nobel Institute, Oslo. http://www.nufs.sjsu.edu/clariebh/borlaug-lecture.pdf. (Accessed July 10, 2015.)

Borthwick, H. A. & N. J. Scully. 1954. Photoperiodic responses in hemp. Botanical Gazette 116: 14–29.

Bouloc, P. (ed). 2006. Le chanvre industriel: production et utilisations. Groupe France Agricole, Paris.

Bouquet, R. J. 1950. Cannabis. Bulletin on Narcotics 2(4): 14–30.

Boyce, S. S. 1900. Hemp (Cannabis sativa). A practical treatise on the culture of hemp for seed and fiber with a sketch of the history and nature of the hemp plant. Orange Judd, New York.

Bradshaw, A. D. 1965. Evolutionary significance of phenotypic plasticity in plants. Advances in Genetics 13: 115–156.

Brickell, C. D., C. Alexander, J. C. David, W. L. A. Hetterscheid, A. C. Leslie, V. Malecot, X. Jin & J. J. Cubey. 2009. International code of nomenclature for cultivated plants. International Society for Horticultural Science, Leuven.

Brown, V. K., J. H. Lawton & P. J. Grubb. 1991. Herbivory and the evolution of leaf size and shape. Philosophical Transactions of the Royal Society, B, Biological Sciences 333: 265–272.

Cabezudo, B., M. Recio, J. M. Sánchez-Laulhé, M. Del Mar Trigo, F. J. Toro & F. Polvorinos. 1997. Atmospheric transportation of marihuana pollen from North Africa to the southwest of Europe. Atmospheric Environment 31: 3323–3328.

Callaway, J. C. 2002. Hemp as food at high latitudes. Journal of Industrial Hemp 7(1): 105–117.

——— 2004. Hempseed as a nutritional resource: an overview. Euphytica 140: 65–72.

———, T. Tennilä & D. W. Pate. 1996. Occurrence of “omega-3” stearidonic acid (cis-6,9,12,15-octadecatetraenoic acid) in hemp (Cannabis sativa L.) seed. Journal of the International Hemp Association 3(2): 61–63.

Carlini, E. A. & J. M. Cunha. 1981. Hypnotic and antiepileptic effects of cannabidiol. The Journal of Clinical Pharmacology 21: 417–427.

Cascini, F., C. Aiello & G. Di Tanna. 2012. Increasing delta-9-tetrahydrocannabinol (Δ9-THC) content in herbal cannabis over time: systematic review and meta-analysis. Current Drug Abuse Reviews 5: 32–40.

Chailakhan, M. K. 1979. Genetic and hormonal regulation of growth, flowering and sex expression in plants. American Journal of Botany 66: 717–736.

Chaitra, M. S., K. Vasudevan & K. Shanker. 2004. The biodiversity bandwagon: the splitters have it. Current Science 86: 897–899.

Chandra, S., H. Lata, Z. Mehmedic, I. A. Khan & M. A. ElSohly. 2010a. Assessment of cannabinoids content in micropropagated plants of Cannabis sativa and their comparison with conventionally propagated plants and mother plant during developmental stages of growth. Planta Medica 76: 743–750.

———, ———, ———, ——— & ———. 2010b. Propagation of elite Cannabis sativa L. for the production of Δ9-tetrahydrocannabinol (THC) using biotechnological tools. Pp 98–114. In: R. Arora (ed). Medicinal Plant Biotechnology. CAB International, Wallingford.

Clarke, R. C. 1977. The botany and ecology of Cannabis. Pods, Ben Lomond.

——— 1981. Marijuana botany: An advanced study: the propagation and breeding of distinctive Cannabis. And/Or Press, Berkeley.

——— 1998. Hashish! Red Eye Press, Los Angeles.

——— & M. D. Merlin. 2013. Cannabis: Evolution and ethnobotany. University of California Press, Los Angeles.

——— & D. P. Watson. 2002. Botany of natural Cannabis medicines. Pp 1–14. In: F. Grotenhermen & E. Russo (eds). Cannabis and cannabinoids: pharmacology, toxicology, and therapeutic potential. Haworth Integrative Healing Press, New York.

——— & ———. 2007. Cannabis and natural Cannabis medicines. Pp 1–17. In: M. A. ElSohly (ed). Marijuana and the cannabinoids. Humana Press, Totowa.

Clausen, J., D. Keck & W. Hiesey. 1948. Experimental studies on the nature of species. 3. Environmental responses of climatic races of Achillea. Carnegie Institute of Washington, Stanford.

Coffman, C. B. & W. A. Gentner. 1975. Cannabinoid profile and elemental uptake of Cannabis sativa L. as influenced by soil characteristics. Agronomy Journal 67: 491–497.

——— & ———. 1977. Responses of greenhouse-grown Cannabis sativa L. to nitrogen, phosphorus, and potassium. Agronomy Journal 69: 832–836.

Cristiana Moliterni, V. M., L. Cattivelli, P. Ranalli & G. Mandolino. 2004. The sexual differentiation of Cannabis sativa L.: a morphological and molecular study. Euphytica 140: 95–106.

Danko, D. 2010. The official High Times field guide to marijuana strains. High Times Corporation, New York.

Darlington, C. D. 1973. Chromosome botany and the origins of cultivated plants, ed. 3rd. Allen & Unwin, London.

Darwin, C. 1845. Journal of researches into the natural history and geology of the countries visited during the voyage of H.M.S. Beagle round the world, under the command of Capt. Fitz Roy, R.N, ed. 2nd. John Murray, London.

——— 1859. On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. John Murray, London, U.K.

——— 1868. The variation of animals and plants under domestication, Vol. 1. John Murray, London.

David, J., G. M. Garrity, W. Greuter, D. L. Hawksworth, R. Jahn, P. M. Kirk, J. McNeill, E. Michel, S. Knapp, D. J. Patterson, B. J. Tindall, J. A. Todd, J. van Tol & N. J. Turland. 2012. Biological nomenclature terms for facilitating communication in the naming of organisms. ZooKeys 192: 67–72.

Davidyan, G. G. 1972. Hemp: biology and initial material for breeding. Trudy po Prikladnoi Botanike, Genetikei Selektsii. Bulletin of Applied Botany, of Genetics, and Plant-breeding 48: 1–160. (In Russian).

De Candolle, A. 1885. Origin of cultivated plants. D. Appleton & Co., New York.

De Guzman, D. 2001. Hemp oil shows huge gains in food and personal care. Chemical Market Reporter 259(10): 7.

De Meijer, E. P. M. 1994. Diversity in Cannabis. Wageningen Agricultural University, Wageningen. (Published doctoral thesis.)

——— 1995. Fibre hemp cultivars: a survey of origin, ancestry, availability and brief agronomic characteristics. Journal of the International Hemp Association 2(2): 66–73.

——— 1998. Cannabis germplasm resources. Pp 133–151. In: P. Ranalli (ed). Advances in hemp research. Food Products Press (of Haworth Press), New York.

——— 2014. Pp 89–110. In: R. G. Pertwee (ed). Handbook of cannabis. Oxford University Press, Oxford.

——— & K. M. Hammond. 2005. The inheritance of chemical phenotype in Cannabis sativa L. (II): canabigerol predominant plants. Euphytica 145: 189–198.

———, ——— & M. Micheler. 2009a. The inheritance of chemical phenotype in Cannabis sativa L. (III): variation in cannabichrome proportion. Euphytica 165: 293–311.

———, ——— & A. Sutton. 2009b. The inheritance of chemical phenotype in Cannabis sativa L. (IV): cannabinoid-free plants. Euphytica 168: 95–112.

———, M. Bagatta, A. Carboni, P. Crucitti, V. M. Moliterni, P. Ranalli & G. Mandolino. 2003. The inheritance of chemical phenotype in Cannabis sativa L. Genetics 163: 335–346.

Deferne, J.-L. & D. W. Pate. 1996. Hemp seed oil: a source of valuable essential fatty acids. Journal of the International Hemp Association 3(1): 4–7.

Devane, W. A., L. Hanus, A. Breuer, R. G. Pertwee, L. A. Stevenson, G. Griffin, D. Gibson, A. Mandelbaum, A. Etinger & R. Mechoulam. 1992. Isolation and structure of a brain constituent that binds to the cannabinoid receptor. Science 258: 1946–1949.

Dewey L H. 1902. Hemp. Pp. 250–251. In: U.S. Department of Agriculture (corporate ed.), 1901 Yearbook of the United States Department of Agriculture. Government Printing Office, Washington, D.C.

——— 1914. Hemp. Pp. 283–146. In: U.S. Department of Agriculture (corporate ed.), Yearbook of the United States Department of Agriculture 1913. U.S. Department of Agriculture, Washington, D.C.

Diamond, J. 2002. Evolution, consequences and future of plant and animal domestication. Nature 418: 700–707.

Diederichsen, A. & J. P. Raney. 2006. Seed colour, seed weight and seed oil content in Linum usitatissimum accessions held by Plant Gene Resources of Canada. Plant Breeding 125: 372–377.

ElSohly, M. A. (ed). 2007. Marijuana and the cannabinoids. Humana Press, Totowa.

——— & D. Slade. 2005. Chemical constituents of marijuana: the complex mixture of natural cannabinoids. Life Sciences 78: 539–548.

Emerich, D. W. & H. B. Krishnan. 2009. Nitrogen fixation in crop production. American Society of Agronomy, Madison.

Faegri, K., J. Iverson, P. E. Kaland & K. Krzywinski. 1989. Textbook of pollen analysis, ed. 4th. Wiley, New York.

Fairbairn, J. W. & J. T. Pickens. 1981. Activity of cannabis in relation to its Δ1-trans-tetrahydrocannabinol content. British Journal of Pharmacology 72: 401–409.

Fellermeier, M. & M. H. Zenk. 1998. Prenylation of olvetolate by a hemp transferase yields cannabigerolic acid, the precursor of tetrahydrocannabinol. FEBS Letters 427: 283–285.

Fetterman, P. S., E. S. Keith, C. W. Waller, O. Guerrero, N. J. Doorenbos & M. W. Quimby. 1971. Mississippi-grown Cannabis sativa L. Preliminary observation on chemical definition of phenotype and variations in tetrahydrocannabinol content versus age, sex, and plant part. Journal of Pharmaceutical Sciences 60: 1246–1477.

Flachowsky, H., E. Schumann, W. E. Weber & A. Peil. 2001. Application of AFLP for the detection of sex-specific markers in hemp. Plant Breeding 120: 305–309.

Flores-Sanchez, I. J. & R. Verpoorte. 2008. Secondary metabolism in cannabis. Phytochemistry Reviews 7: 615–639.

Fournier, G., C. Richez-Dumanois, J. Duvezin, J.-P. Mathieu & M. Paris. 1987. Identification of a new chemotype in Cannabis sativa: cannabigerol-dominant plants, biogenetic and agronomic prospects. Planta Medica 53: 277–280.

Fuller, D. Q. & R. Allaby. 2009. Seed dispersal and crop domestication: shattering, germination and seasonality in evolution under cultivation. Annual Plant Reviews 38: 238–295.

Furr, M. & P. G. Mahlerg. 1981. Histochemcial analyses of laticifers and glandular trichomes in Cannabis sativa. Journal of Natural Products 44: 153–159.

Gagne, S. J., J. M. Stout, E. Liu, Z. Boubakir, S. M. Clark & J. E. Page. 2012. Identification of olivetolic acic cyclase from Cannabis sativa reveals a unique catalytic route to plant polyketides. PNAS 109: 12811–12816.

Garcia-Jaldon, v., D. Dupreyre & M. R. Vignon. 1998. Fibres from semi-retted hemp bundles by steam explosion treatment. Biomass Energy 14: 251–260.

Gertsch, J., R. G. Pertwee & V. Di Marzo. 2010. Phytocannabinoids beyond the Cannabis plant – do they exist? British Journal of Pharmacology 160: 523–529.

Givnish, T. J. 1988. Adaptation to sun and shade: a whole-plant perspective. Australian Journal of Plant Physiology 15: 63–92.

Gorshkova, L. M., G. I. Senchenko & V. G. Virovets. 1988. Method of evaluating hemp plants for content of cannabinoid compounds. Referativnyi Zhurnal 12.65.322. (Abstract, in Russian.)

Gove, P. B. (ed). 1981. Webster’s third new international dictionary of the English language unabridged. Merriam-Webster Inc., Springfield.

Grisswell, J. & V. Young. 2011. Professor Grow’s book of strains. The 50 Cannabis strains most commonly found at dispensaries. Professor Grow, LLC, Firestone.

Grotenhermen, F. 2003. Clinical pharmacodynamics of cannabinoids. Journal of Cannabis Therapeutics 4: 29–78.

——— 2004a. Pharmacokinetics and pharmacodynamics of cannabinoids. Clinical Pharmacokinetics 4: 327–360.

——— 2004b. The cannabinoid system – a brief review. Journal of Industrial Hemp 9(2): 87–92.

——— & M. Karus. 1998. Industrial hemp is not marijuana: comments on the drug potential of fiber Cannabis. Journal of the International Hemp Association 5(2): 96–101.

——— & K. Műller-Vahl. 2012. The therapeutic potential of Cannabis and cannabinoids. Deutsches Ärzteblatt International 109: 495–501.

——— & E. Russo. 2002. Cannabis and cannabinoids: pharmacology, toxicology, and therapeutic potential. Haworth Integrative Healing Press (of Haworth Press), New York.

———, M. Karus & D. Lohmeyer. 1998. THC limits for food: A scientific study. Journal of the International Hemp Association 5(2): 101–105.

_____, G. Leson, G. Berghaus, O. H. Drummer, H.-P. Krüger, M. Longo, H. Moskowitz, B. Perrine, J. Ramaekers, A. Smiley & R. Tunbridge. 2005. Developing science-based per se limits for driving under the influence of cannabis: findings and recommendations by an expert panel. Nova Institute, Hürth. www.canorml.org/healthfacts/DUICreport.2005.pdf. (Accessed July 10, 2015.)

Grudzinskaya, I. A. 1988. The taxonomy of the family Cannabaceae. Botanicheskiy Zhurnal (Leningrad) 73: 589–593. In Russian.

Hamayun, M. & Z. K. S. Shinwari. 2004. Folk methodology of charas (hashish) production and its marketing at Afridi Tirah, Federally Administered Tribal Areas (FATA), Pakistan. Journal of Industrial Hemp 9(2): 41–50.

Hammer, K & Y. Morimoto. 2012. Chapter 7: Classifications of infraspecific variation in crop plants. In: L. Guarino & V. Ramanatha Rao (eds.), Collecting plant genetic diversity: Technical guidelines. 2011 update. http://biodiversity-l.iisd.org/news/cgiar-releases-updated-guidelines-for-collecting-plant-genetic-diversity/. (Accessed July 10, 2015.)

Hammond, C. T. & P. G. Mahlberg. 1977. Morphogenesis of capitate glandular hairs of Cannabis sativa (Cannabaceae). American Journal of Botany 64: 1023–1031.

——— & ———. 1978. Ultrastructural development of capitate glandular hairs of Cannabis sativa L. (Cannabaceae). American Journal of Botany 65: 140–151.

Haney, A. & F. A. Bazzaz. 1970. Some ecological implications of the distribution of hemp (Cannabis sativa L.) in the United States of America. Pp 39–48. In: C. R. B. Joyce & S. H. Curry (eds). The botany and chemistry of Cannabis. J. & A. Churchill, London.

——— & B. B. Kutscheid. 1973. Quantitative variation in the chemical constituents o marijuana from stands of naturalized Cannabis sativa L. in east-central Illinois. Economic Botany 27: 193–203.

——— & ———. 1975. An ecological study of naturalized hemp (Cannabis sativa L.) in east-central Illinois. American Midland Naturalist 93: 1–24.

Harlan, J. R. 1995. The living fields, our agricultural heritage. Cambridge University Press, Cambridge.

——— & J. M. J. de Wet. 1971. Toward a rational classification of cultivated plants. Taxon 20: 509–517.

Hartsel, S. C., W. H. Y. Loh & L. W. Robertson. 1983. Biotransformation of cannabidiol to cannabielsoin by suspension cultures of Cannabis sativa L. and Saccharum officinalis L. Plant Medica 48: 17–19.

Hazekamp, A. & J. T. Fischedick. 2012. Cannabis – from cultivar to chemovar. Drug Testing and Analysis 4: 660–667.

Heiser, C. B. 1988. Aspects of unconscious selection and the evolution of domesticated plants. Euphytica 37: 77–81.

Heitrich, A. & M. Binder. 1982. Identification of (3R,4R)-Δ1(6)-tetrahydrocannabinol as an isolation artifact of cannabinoid acids formed by callus cultures. Experientia 38: 898–899.

Hemphill, J., J. Turner & P. Mahlberg. 1980. Cannabinoid content of individual plant organs from different geographical strains of Cannabis sativa L. Journal of Natural Products 43: 112–122.

Heslop-Harrison, J. 1956. Auxin and sexuality in Cannabis sativa. Physiologia Plantarum 4: 588–597.

——— & Y. Heslop-Harrison. 1957. Studies on flowering-plant growth and organogenesis. II. The modification of sex expression in Cannabis sativa by carbon monoxide. Proceedings of the Royal Society of Edinburgh. Section B. Biology 66: 424–434.

——— & ———. 1969. Cannabis sativa L. Pp 205–226. In: L. T. Evans (ed). The induction of flowering. Some case histories. Cornell University Press, Ithaca.

Hetterscheid, W. L. A., R. G. van Den Berg & W. A. Brandeburg. 1996. An annotated history of the principles of cultivated plant classification. Acta Botanica Neerlandica 45: 123–134.

Hillig, K. W. 2002. Letter to the editor. Journal of Industrial Hemp 7(1): 5–6.

——— 2004a. A chemotaxonomic analysis of terpenoid variation in Cannabis. Biochemical Systematics and Ecology 32: 875–891.

——— 2004b. A multivariate analysis of allozyme variation in 93 Cannabis accessions from the VIR germplasm collection. Journal of Industrial Hemp 9(2): 5–22.

——— 2005. Genetic evidence for speciation in Cannabis (Cannabaceae). Genetic Research and Crop Evolution 52(2): 161–180.

——— & P. G. Mahlberg. 2004. A systematic analysis of cannabinoid variation in Cannabis (Cannabaceae). American Journal of Botany 91: 966–975.

Hoffmann, W. 1970. Hemp (Cannabis sativa L.). Pp 415–430. In: W. Hoffmann, A. Mudra, & W. Plarre (eds). Textbook of breeding agricultural cultivated plants, Vol. 2. P. Parey, Berlin. (In German).

Hölldolber, B. & E. O. Wilson. 1990. The ants. Belknap, Cambridge.

Huang, H. T. 2000. Science and civilization in China, Vol. 6: biology and biological technology, Part V: fermentations and food science. Cambridge University, Cambridge.

Idler, C., R. Pecenka, C. Fürll & H.-J. Gusovius. 2011. Wet processing of hemp: an overview. Journal of Natural Fibers 8: 59–90.

Inam, B., F. Hussain & F. Bano. 1989. Cannabis sativa L. is allelopathic. Pakistan Journal of Scientific and Industrial Research 32: 617–620.

Isaac, N. J. B., J. Mallet & G. M. Mace. 2004. Taxonomic inflation: its influence on macroecology and conservation. Trends in Ecology and Evolution 19: 464–469.

Janischevsky, D. E. 1924. A form of hemp in wild areas of southeastern Russia. Učenye zapiski Saratovskogo Gosudarstvennogo imeni N.G. Černyševskogo Universiteta 2(2): 3–17. (In Russian).

Jansen, M. & R. Teris. 2002. One woman’s work in the use of hashish in a medical context. Journal of Cannabis Therapeutics 2(3/4): 133–141.

Jarillo, J. A., I. del Olmo, A. Gómez-Zambrano, A. Lázaro, L. López-González, E. Miguel, L. Narro-Diego, D. Sáez & M. Piñeiro. 2008. Review. Photoperiodic control of flowering time. Spanish Journal of Agricultural Research 6(Special issue): 221–244.

Jeffrey, C. 1968. Systematic categories for cultivated plants. Taxon 17: 109–114.

Jirásek, V. 1961. Evolution of the proposals of taxonomical categories for the classification of cultivated plants. Taxon 10(2): 34–45.

Johnson, K. P. & M. D. Sorenson. 1999. Phylogeny and biogeography of the dabbling ducks (Genus: Anas): A comparison of molecular and morphological evidence. The Auk 116: 792–805.

Johnson, J. M., L. Lemberger, M. Novotny, R. B. Forney, W. S. Dalton & M. P. Maskarinec. 1984. Pharmacological activity of the basic fraction of marihuana whole smoke condensate alone and in combination with delta-9-tetrahydrocannabinol in mice. Toxicology and Applied Pharmacology 72: 440–448.

Joy, J. E., J. Stanley, S. J. Watson Jr. & J. A., Benson Jr. (eds). 1999. Marijuana and medicine: assessing the science base. National Academy Press, Washington, D.C.

Kim, E. S. & P. G. Mahlberg. 1995. Glandular cuticle formation in Cannabis (Cannabaceae). American Journal of Botany 82: 1207–1214.

——— & ———. 1997. Immunochemical localization of tetrahydrocannabinol (THC) in cryofixed glandular trichomes of Cannabis (Cannabaceae). American Journal of Botany 84: 336–342.

——— & ———. 2003. Secretory vesicle formation in the secretory cavity of glandular trichomes of Cannabis sativa L. (Cannabaceae). Molecules & Cells 15: 387–395.

King, L. A., C. Carpentier & P. Griffiths. 2005. Cannabis potency in Europe. Addiction 100: 884–886.

Kluyver, T. A., M. Charles, G. Jones, M. Rees & C. P. Osborne. 2013. Did greater burial depth increase the seed size of domesticated legumes? Journal of Experimental Botany 64: 4101–4108.

Köhler, F. E. 1887. Medizinal-Pflanzen. Gera-Untermhaus, Berlin.

Krings, M., T. N. Taylor & D. W. Kellogg. 2002. Touch-sensitive glandular trichomes: a mode of defence against herbivorous arthropods in the Carboniferous. Evolutionary Ecology Research 4: 779–786.

Kushima, H., Y. Shoyama & I. Nishioka. 1980. Cannabis. XII. Variations of cannabinoid contents in several strains of Cannabis sativa L. with leaf-age, season and sex. Chemical and Pharmaceutical Bulletin 28: 594–598.

Lallemand, M. G. & M. Levy. 1860. L’illustration Journal Universel 926. (Weekly newspaper, Nov. 24, Paris, France; accompanying an article by M. Leon Loiseau.)

Lata, H., S. Chandra, N. Techen, I. A. Khan & M. A. ElSohly. 2011. Molecular analysis of genetic fidelity in Cannabis sativa L. plants grown from synthetic (encapsulated) seeds following in vitro storage. Biotechnology Letters 33: 2503–2508.

Latta, R. & B. Eaton. 1975. Seasonal fluctuations in cannabinoid content of Kansas marijuana. Economic Botany 29: 153–163.

Lavins, E. S., B. D. Lavins & A. J. Jenkins. 2004. Cannabis (marijuana) contamination of United States and foreign paper currency. Journal of Analytical Toxicology 28: 439–442.

Le Dain, G. (chair). 1972. Cannabis. A report of the commission of inquiry into the non-medical use of drugs. Information Canada, Ottawa.

Ledbetter, M. C. & A. D. Krikorian. 1975. Trichomes of Cannabis sativa as viewed with scanning electron microscope. Phytomorphology 25: 166–176.

Leizer, C., D. Ribnicky, A. Poulev, S. Dushenkov & I. Raskin. 2000. The composition of hemp seed oil and its potential as an important source of nutrition. Journal of Nutraceuticals Functional and Medical Foods 2: 35–53.

Leson, G. 2001. Evaluating interference of THC in hemp food produces with employee drug testing. Irregularly paginated. In: Nova Institute (corporate ed.), Bioresource hemp & other fibre crops: proceedings of the symposium, Wolfsburg, Germany, Sept. 13–16, 2000. Nova Institute, Hürth.

——— & P. Pless. 2002. Hemp seed and hemp oil. Pp 411–425. In: F. Grotenhermen & E. Russo (eds). Cannabis and cannabinoids. Pharmacology, toxicology, and therapeutic potential. Haworth Integrative Healing Press, Binghamton.

Levin, D. A. 2001. The recurrent origin of plant races and species. Systematic Botany 26: 197–204.

Lewis, D. 1942. The evolution of sex in flowering plants. Biological Reviews 17: 46–67.

Lewis, W. H. & M. P. F. Elvin-Lewis. 2003. Medical botany: plants affecting human health, ed. 2nd. Wiley, Hoboken.

Li, Y., K. L. Pickering & R. L. Farrell. 2009. Analysis of green hemp fibre reinforced composites using bag retting and white rot fungal treatments. Industrial Crops and Products 29: 420–426.

Lindemayr, H. & S. Jager. 1980. Occupational immediate type allergy to hemp pollen and hashish. Dermatosen in Beruf und Umwelt 28(1): 17–19. (In German).

Linnaeus, C. 1753. Species plantarum, Vol. 2 vols. Laurentius Salvius, Stockholm.

Lydon, J., A. H. Teramura & C. B. Coffman. 1987. UV-B radiation effects on photosynthesis, growth and cannabinoid production of two Cannabis sativa chemotypes. Photochemistry and Photobiology 46: 201–206.

Mahlberg, P. G. & J. K. Hemphill. 1983. Effect of light quality on cannabinoid content of Cannabis sativa L. (Cannabaceae). Botanical Gazette 144: 43–48.

——— & E. S. Kim. 1991. Cuticle development on glandular trichomes of Cannabis sativa (Cannabaceae). American Journal of Botany 78: 1113–1122.

——— & ———. 1992. Secretory vesicle formation in glandular trichomes of Cannabis sativa (Cannabaceae). American Journal of Botany 79: 166–173.

——— & ———. 2004. Accumulation of cannabinoids in glandular trichomes of Cannabis (Cannabaceae). Journal of Industrial Hemp 9(1): 15–36.

———, C. T. Hammond, J. C. Turner & J. K. Hemphill. 1984. Structure, development and composition of glandular trichomes of Cannabis sativa L. Pp 23–51. In: E. Rodriguez, P. L. Healey, & I. Mehta (eds). Biology and chemistry of plant trichomes. Plenum Press, New York.

Malingré, T., H. Hendricks, S. Batterman, R. Bos & J. Visser. 1975. The essential oil of Cannabis sativa. Planta Medica 28: 56–61.

Mandolino, G. 2004. Again on the nature of inheritance of chemotype. Letter to the editor. Journal of Industrial Hemp 9(1): 5–7.

——— & P. Ranalli. 1998. Advances in biotechnological approaches for hemp breeding and industry. Pp 185–212. In: P. Ranalli (ed). Advances in hemp research. Food Products Press (of Haworth Press), New York.

——— & ——— 2002. The applications of molecular markers in genetics and breeding o hemp. Journal of Industrial Hemp 7(1): 7–23.

———, A. Carboni, S. Forapani, V. Faeti & P. Ranalli. 1999. Identification of DNA markers linked to the male sex in dioecious hemp (Cannabis sativa L.). Theoretical and Applied Genetics 98: 86–92.

———, ———, M. Bagatta, V. M. Cristiana Moliterni & P. Ranalli. 2002. Occurrence and frequency of putatively Y chromosome linked DNA markers in Cannabis sativa L. Euphytica 126: 211–218.

———, M. Bagatta, A. Carboni, P. Ranalli & E. P. M. de Meijer. 2003. Qualitative and quantitative aspects of the inheritance of chemical phenotype in Cannabis. Journal of Industrial Hemp 8(2): 52–72.

McNaughton, S. J. 1983. Compensatory plant growth as a response to defoliation by gypsy moth larvae. Oikos 49: 329–336.

McNeill, J. 1998. Culton: a useful term, questionably argued. Hortax News 1(4): 15–22.

——— 2004. Nomenclature of cultivated plants: a historical botanical standpoint. Pp 29–36. In: C. G. Davidson & P. Trehane (eds). Fourth international symposium on taxonomy of cultivated plants. International Society for Horticultural Science, Leuven.

———, F. R. Barrie, W. R. Buck, V. Demoulin, W. Greuger, D. L. Hawksworth, P. S. Herendeen, S. Knapp, K. Marhold, J. Prado, W. F. Prud’homme van Reine, G. F. Smith, J. H. Wiersema & N. J. Turland. (eds.). 2012. International code of nomenclature for algae, fungi, and plants (Melbourne Code). Koenigstein, Germany: Koelz Scientific Books. (Regnum Vegetabile 154.) http://www.iapt-taxon.org/nomen/main.php?page=title. (Accessed July 10, 2015.)

McPartland, J. M. 1997. Cannabis as repellent and pesticide. Journal of the International Hemp Asociation 4(2): 87–92.

——— 1998. A survey of hemp diseases and pests. Pp 109–131. In: P. Ranalli (ed). Advances in hemp research. Food Products Press (of Haworth Press), London.

——— 2001. Advantages of polypharmaceutical herbal Cannabis compared to single ingredient, synthetic tetrahydrocannabinoid. Irregularly paginated. In: Nova Institute (corporate ed.), Bioresource hemp & other fibre crops: proceedings of the symposium, Wolfsburg, Germany, Sept. 13–16, 2000. Nova Institute, Hürth.

——— & G. W. Guy. 2004. The evolution of Cannabis and coevolution with the cannabinoid receptor – a hypothesis. Pp 71–101. In: G. W. Guy, B. A. Whittle, & P. J. Robson (eds). The medicinal uses of Cannabis and cannabinoids. Pharmaceutical Press, London.

——— & V. Mediavilla. 2002. Noncannabinoid components. Pp 401–409. In: F. Grotenhermen & E. Russo (eds). Cannabis and cannabinoids. Pharmacology, toxicology, and therapeutic potential. Haworth Integrative Healing Press, Binghamton.

——— & E. B. Russo. 2001. Cannabis and cannabis extracts: greater than the sum of their parts? Journal of Cannabis Therapeutics 1: 103–132.

———, R. C. Clarke & D. P. Watson. 2000. Hemp diseases and pests: management and biological control. CABI, Wallingford.

———, V. Di Marzo, L. De Petrocellis, A. Mercer & M. Glass. 2001. Cannabinoid receptors are absent in insects. Journal of Comparative Neurology 436: 423–429.

Mechoulam, R. 2012. Cannabis – a valuable drug that deserves better treatment. Mayo Clinic Proceedings 87(2): 107–109.

Mechtler, K., J. Bailer & K. de Hueber. 2004. Variations of Δ9-THC content in single plants of hemp varieties. Industrial Crops and Products 19: 19–24.

Mediavilla, V. & S. Steinemann. 1997. Essential oil of Cannabis sativa L. strains. Journal of the International Hemp Association 4(2): 80–82.

Meier, C. & V. Mediavilla. 1998. Factors influencing the yield and the quality of hemp (Cannabis sativa L.) essential oil. Journal of the International Hemp Association 5(1): 16–20.

Merlin, M. D. 1972. Man and marijuana: Some aspects of their ancient relationship. Associated University Presses, Cranbury.

Migalj, N. D. 1969. Morphology of hemp (Cannabis L.) pollen. Botanicheskiy Zhurnal (Leningrad) 54: 274–276. (In Russian).

Mikuriya, T. H. 1969. Marijuana in medicine: past, present and future. California Medicine 110(1): 34–40.

Miller, N. G. 1970. The genera of the Cannabaceae in the Southeastern United States. Journal of the Arnold Arboretum 51: 185–203.

Minelli, A. 2003. Biological systematics: the state of the art. Springer, New York.

Mohan Ram, H. Y. & V. S. Jaiswal. 1970. Induction of female flowers on male plants of Cannabis sativa by 2-chlorothane phosphonic acid. Experimentia 26: 214–216.

Mölleken, H. & R. R. Theimer. 1997. Survey of minor fatty acids in Cannabis sativa L. fruits of various origins Pp. 500–504. In: Nova Institute (corporate ed.), Proceedings of the bioresource hemp symposium, Frankfurt am Main, Germany, Feb. 27–March 2, 1997. Nova Institute, Hürth. (In German.)

———, R. Mothes & S Dudek. 2001. Quality of hemp fruits and hemp oil in relation to the maturity of the fruits. Irregularly paginated. In: Nova Institute (corporate ed.), Bioresource hemp & other fibre crops: proceedings of the symposium, Wolfsburg, Germany, Sept. 13–16, 2000. Nova Institute, Hürth.

Montford, S. & E. Small. 1999a. Measuring harm and benefit: the biodiversity friendliness of Cannabis sativa. Global Biodiversity 8(4): 2–13.

——— & ———. 1999b. A comparison of the biodiversity friendliness of crops with special reference to hemp (Cannabis sativa). Journal of the International Hemp Association 6(2): 53–63.

Mustafa, A. F., J. J. McKinnon & D. A. Christensen. 1999. The nutritive value of hemp meal for ruminants. Canadian Journal of Animal Science 79: 91–95.

Nayak, A. P., B. J. Green, G. Sussman, N. Berlin, H. Lata, S. Chandra, M. A. ElSohly, J. M. Hettick & D. H. Beezhold. 2013. Characterization of Cannabis sativa allergens. Annals of Allergy, Asthma & Immunology 111: 32–37.

Nesom, G. L. 2011. Toward consistency of taxonomic rank in wild/domesticated Cucurbitaceae. Phytoneuron 13: 1–33.

Nobel, P. S. 1976. Photosynthetic rates of sun versus shade leaves of Hyptis emoryi Torr. Plant Physiology 58: 218–223.

Novak, J., K. Zitterl-Eglseer, S. G. Deans & C. M. Franz. 2001. Essential oils of different cultivars of Cannabis sativa L. and their antimicrobial activity. Flavour and Fragrance Journal 16: 259–262.

Onaivi, E. S., T. Sugiura & V. di Marzo (eds). 2005. Endocannabinoids: the brain and body’s marijuana and beyond. CRC Press, Boca Raton.

Oner, S. T. 2011a. Cannabis indica: the essential guide to the world’s finest marijuana strains, Vol. 1. Green Candy Press, San Francisco.

——— 2011b. Cannabis indica: the essential guide to the world’s finest marijuana strains, Vol. 2. Green Candy Press, San Francisco.

——— 2012. Cannabis sativa: the essential guide to the world’s finest marijuana strains. Green Candy Press, San Francisco.

Oomah, B. D., M. Busson, D. V. Godfrey & J. C. G. Drover. 2002. Characteristics of hemp (Cannabis sativa L.) seed oil. Food Chemistry 76: 33–43.

Oost, E. H. 1989. Typification of Brassica oleracea L. (Cruciferae) and its Linnaean varieties. Botanical Journal of the Linnean Society 101: 329–345.

Pacifico, D., F. Miselli, M. Micheler, A. Carboni, P. Ranalli & G. Mandolino. 2006. Genetics and marker-assisted selection of the chemotype in Cannabis sativa L. Molecular Breeding 17: 257–268.

———, ———, A. Carboni, A. Moschella & G. Mandolino. 2008. Time course of cannabinoid accumulation and chemotype development during the growth of Cannabis sativa L. Euphytica 160: 231–240.

Padial, J. M. & I. de la Riva. 2006. Taxonomic inflation and the stability of species lists: the perils of ostrich’s behavior. Systematic Biology 55: 859–867.

Paris, M., F. Boucher & L. Cosson. 1975. The constituents of Cannabis sativa pollen. Economic Botany 29: 245–253.

Pate, D. W. 1983. Possible role of ultraviolet radiation in evolution of Cannabis chemotypes. Economic Botany 37: 396–405.

——— 1994. Chemical ecology of Cannabis. Journal of the International Hemp Association 1(2): 29. 32–37.

——— 1998a. The phytochemistry of Cannabis: its ecological and evolutionary implications. Pp 21–42. In: P. Ranalli (ed). Advances in hemp research. Food Products Press (of Haworth Press), London.

——— 1998b. Hemp seed: a valuable food source. Pp 243–255. In: P. Ranalli (ed). Advances in hemp research. Food Products Press (of Haworth Press), London.

Peil, A., H. Flachowsky, E. Schumann & W. E. Weber. 2003. Sex-linked AFLP markers indicate a pseudoautosomal region in hemp (Cannabis sativa L.). Theoretical and Applied Genetics 107: 102–109.

Pertwee, R. G. (ed). 2014. Handbook of cannabis. Oxford University Press, Oxford.

Peterken, G. F. 1981. Woodland conservation and management. Chapman and Hall, London.

Phillips, R., R. Turk, J. Manno, D. Crim & R. Forney. 1970. Seasonal variation in cannabinolic content of Indiana marihuana. Journal of Forensic Sciences 15: 191–200.

Pickens, J. T. 1981. Sedative activity of cannabis in relation to its Δ1-trans-tetrahydrocannabinol and cannabidiol content. British Journal of Pharmacology 72: 649–656.

Pickersgill, B., M. I. Chacón Sánchez & D. G. Debouck. 2003. Multiple domestications and their taxonomic consequences: the example of Phaseolus vulgaris. Schriften zu Genetischen Ressourcen 22: 71–83.

Popular Mechanics. 1938. New billion-dollar crop. Popular Mechanics 144A: 238–239.

Potter, D. J. 2014. Cannabis horticulture. Pp 65–88. In: R. G. Pertwee (ed). Handbook of cannabis. Oxford University Press, Oxford.

——— & P. Duncombe. 2012. The effect of electrical lighting power and irradiance on indoor-grown Cannabis potency and yield. Journal of Forensic Sciences 57: 618–622.

Przybylski, R., J. Moes & A. Sturko. 1997. Effect of growing conditions on composition of hemp oils. Pp. 505–514. In: Nova Institute (corporate ed.), Bioresource hemp: proceedings of the symposium, Frankfurt am Main, Germany, Feb. 27–March 2, 1997. Nova Institute, Hürth.

Qaiser, M. 1973. Cannabaceae. Pp 1–3. In: E. Nasir & S. I. Ali (eds). Flora of West Pakistan, issue 44. University of Karachi, Karachi.

Radwan, M. M., M. A. ElSohly, D. Slade, S. A. Ahmed, I. A. Khan & S. A. Ross. 2009. Biologically active cannabinoids from high-potency Cannabis sativa. Journal of Natural Products 72: 906–911.

Raie, M. Y., A. Ahmad, M. Ashraf & S. Hussain. 1995. Studies of Cannabis sativa and Sorghum bicolor oils. Fat Science Technology 97: 428–429.

Ratcliffe, D. A. (ed). 1977. A nature conservation review, Vol. 2. Cambridge University Press, Cambridge.

Renner, S. S. & R. E. Ricklefs. 1995. Dioecy and its correlates in the flowering plants. American Journal of Botany 82: 596–606.

Rindos, D. 1984. The origins of agriculture: An evolutionary perspective. Academic, New York.

Rode, J., K. In-Chol, B. Saal, H. Flachowsky, U. Kriese & W. E. Weber. 2005. Sex-linked SSR markers in hemp. Plant Breeding 124: 167–170.

Rosenthal, E. 2001. The big book of buds. Marijuana varieties from the world’s great seed breeders. Quick American Archives, Oakland.

——— 2004. The big book of buds: 2. More marijuana varieties from the world’s great seed breeders. Quick American Archives, Oakland.

——— 2007. The big book of buds: 3. More marijuana varieties from the world’s great seed breeders. Quick American, Oakland.

——— 2010. The big book of buds: 4. Marijuana varieties from the world’s great seed breeders. Quick American Publishing, Oakland.

Ross, S. A. & M. A. ElSohly. 1996. The volatile oil composition of fresh and air-dried buds of Cannabis sativa. Journal of Natural Products 59: 49–51.

———, Z. Mehmedic, T. P. Murphy & M. A. ElSohly. 2000. GC-MS analysis of the total Δ9-THC content of both drug- and fiber-type Cannabis seeds. Journal of Analytical Toxicology 24: 715–717.

———, M. A. ElSohly, Z. Mehmedic, T. P. Murphy, M. A. ElSohly, M. A. ElSohly, G. N. N. Sultana, Z. Mehmedic, C. F. Hossain & S. Chandra. 2005. Flavonoid glycosides and cannabinoids from the pollen of Cannabis sativa L. Phytochemical Analysis 16: 45–48.

Ross-Ibara, J., P. L. Morrell & B. S. Gaut. 2007. Plant domestifcation, a unique opportunity to identify the genetic basis of adaptation. Pp 205–224. In: J. C. Avise & F. J. Ayala (eds). In the light of evolution. Volume 1: adaptation and complex design. National Academies Press, Washington, D.C.

Roulac, J. W. 1997. Hemp horizons: the comeback of the world’s most promising plant. Chelsea Green Publishing, White River Junction.

Russo, E.B. 2003. Introduction: cannabis from pariah to prescription. Journal of Cannabis Therapeutics 3: 1–29.

——— 2007. History of cannabis and its preparations in saga, science, and sobriquet. Chemistry & Biodiversity 4: 1614–1648.

——— 2011. Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. British Journal of Pharmacology 163: 1344–1364.

——— & G. W. Guy. 2006. A tale of two cannabinoids: the therapeutic rationale for combining tetrahydrocannabinol and cannabidiol. Medical Hypotheses 66: 234–246.

——— & J. M. McPartland. 2003. Cannabis is more than simply Δ9-tetrahydrocannabinol. Psychopharmacology 165: 431–432.

———, H. E. Jiang, X. Li, A. Sutton, A. Carboni, F. del Bianco, G. Mandolino, D. J. Potter, Y.-X. Zhao, S. Bera, Y.-B. Zhang, E.-G. Lü, D. K. Ferguson, F. Hueber, L.-C. Zhao, C.-J. Liu, Y.-F. Wang & C.-S. Li. 2008. Phytochemical and genetic analyses of ancient cannabis from Central Asia. Journal of Experimental Botany 59: 4171–4182.

Ryan, D., A. J. Drysdale, R. G. Pertwee & B. Platt. 2006. Differential effects of cannabis extracts and pure plant cannabinoids on hippocampal neurones and glia. Neuroscience Letters 408: 236–241.

Sakamoto, K., Y. Akiyama, K. Fukui, H. Kamada & S. Satoh. 1998. Characterization: genome size and morphology of sex chromosomes in hemp (Cannabis sativa L.). Cytologia 3: 459–464.

———, N. Ohmido, K. Fukui, H. Kamada & S. Satoh. 2000. Site-specific accumalation of a LINE-like retrotransposon in a sex chromosome of the dioecious plant Cannabis sativa. Plant Molecular Biology 44: 723–732.

———, T. Abe, T. Matsuyama, S. Yoshida, N. Ohmido, K. Fukui & S. Satoh. 2005. RAPD markers encoding retrotransposable elements are linked to the male sex in Cannabis sativa L. Genome 48: 931–936.

Sakuma, S., B. Salomon & T. Komatsuda. 2011. The domestication syndrome genes responsible for the major changes in plant form in the Triticeae crops. Plant & Cell Physiology 52: 738–749.

Sarlikioti, V., P. H. B. de Visser, G. H. Buck-Sorlin & L. F. M. Marcelis. 2011. How plant architecture affects light absorption and photosynthesis in tomato: towards an ideotype for plant architecture using a functional-structural plant model. Annals of Botany 108: 1065–1073.

Schaffner, J. H. 1926. The change of opposite to alternate phyllotaxis and repeated rejuvenations in hemp by means of changed photoperiodicity. Ecology 7: 315–325.

Scholz, H. 1957. Wild hemp as a ruderal plant of Central Europe. Verhandlungen des Botanischen Vereins der Provinz Brandenburgund der angrenzenden Länder 83(97): 61–64. (In German).

Schultes, R. E. 1970. Random thoughts and queries on the botany of Cannabis. Pp 11–38. In: R. B. Joyce & S. H. Curry (eds). The botany and chemistry of Cannabis. J. & A. Churchill, London.

——— & A. Hofmann. 1980. The botany and chemistry of hallucinogens, ed. 2d. Thomas, Springfield.

———, W. M. Klein, T. Plowman & T. E. Lockwood. 1974. Cannabis: an example of taxonomic neglect. Botanical Museum Leaflets, Harvard University 23: 337–367.

Schultz, T. R. & T. P. McGlynn. 2000. The interactions of ants with other organisms. Pp 35–44. In: D. Agosti, J. Majer, L. Alonso, & T. R. Schultz (eds). Ants: standard methods for measuring and monitoring biodiversity. Smithsonian Institution Press, Washington, D.C.

———, U. G. Mueller, C. R. Currie & S. A. Rehner. 2005. Reciprocal illumination: a comparison of agriculture in humans and in fungus-growing ants. Pp 149–190. In: F. E. Vega & M. Blackwell (eds). Insect–fungal associations: ecology and evolution. Oxford University Press, New York.

Segelman, A. B., R. D. Sofia, F. P. Segelman, J. J. Harakal & L. C. Knobloch. 1974. Cannabis sativa L. (marijuana) V: pharmacological evaluation of marijuana aqueous extract and volatile oil. Journal of Pharmaceutical Sciences 26: 962–964.

Serebriakova, T. Y. 1940. Fiber plants, Volume 5, Part 1. In: E. V. Wulff (ed). Flora of cultivated plants. State Printing Office, Moscow. (In Russian).

——— & I. A. Sizov. 1940. Cannabinaceae Lindl. Pp 1–53. In: N. I. Vavilov (ed). Kulturnaja Flora SSSR Vol. 5. Kolos, Moscow. (In Russian).

Shao, H., S.-J. Song & R. C. Clarke. 2003. Female-associated DNA polymorphisms of hemp (Cannabis sativa L.). Journal of Industrial Hemp 8(1): 5–9.

Sharma, G. K. 1979. Significance of eco-chemical studies of Cannabis. Science Culture 45: 303–307.

Shoyama, Y., F. Taura & S. Morimoto. 2001. Expression of tentrahydrocannabinoilic acid synthase in tobacco. 9. In: Proceedings, 2001 symposium on the cannabinoids. International Cannabinoid Research Society, Burlington.

Sikora, V., J. Berenji & D. Latković. 2011. Influence of agroclimatic conditions on content of main cannabinoids in industrial hemp (Cannabis sativa L.). Genetika 43: 449–456.

Sirikantaramas, S., F. Taura, Y. Tanaka, Y. Ishikawa, S. Morimoto & Y. Shoyama. 2005. Tetrahydrocannabinolic acid synthase, the enzyme controlling marijuana psychoactivity, is secreted into the storage cavity of the glandular trichomes. Plant Cell Physiology 46: 1578–1582.

———, ———, S. Morimoto & Y. Shoyama. 2007. Recent advances in Cannabis sativa research: biosynthetic studies and its potential in biotechnology. Current Pharmaceutical Biotechnology 8: 237–243.

Small, E. 1972a. Interfertility and chromosomal uniformity in Cannabis. Canadian Journal of Botany 50: 1947–1949.

——— 1972b. The hemp problem in Canada. Greenhouse Garden Grass 11(3): 46–52.

——— 1974. American law and the species problem in Cannabis. Microgram 7: 131–132.

——— 1975a. Morphological variation of achenes of Cannabis. Canadian Journal of Botany 53: 978–987.

——— 1975b. American law and the species problem in Cannabis: science and semantics. Bulletin on Narcotics 27(3): 1–20.

——— 1975c. Essential considerations of the taxonomic debate in Cannabis. Journal of Forensic Sciences 20: 739–741.

——— 1975d. On toadstool soup and legal species of Cannabis. Plant Science Bulletin 21: 34–39.

——— 1975e. The case of the curious “Cannabis,”. Economic Botany 29: 254.

——— 1976. The forensic taxonomic debate on Cannabis: semantic hokum. Journal of Forensic Sciences 21: 239–251.

——— 1977. Nomenclatural nonsense and legal marijuana plants. Bulletin of the Pacific Tropical Botanical Garden 7(1): 1–6.

——— 1978a. A numerical and nomenclatural analysis of morpho-geographic taxa of Humulus. Systematic Botany 3: 37–76.

——— 1978b. A numerical taxonomic analysis of the Daucus carota complex. Canadian Journal of Botany 56: 248–276.

——— 1979a. The species problem in Cannabis: science and semantics. Volume 1, Science. Corpus, Toronto.

——— 1979b. The species problem in Cannabis: science and semantics. Volume 2, Semantics. Corpus, Toronto.

——— 1997. Cannabaceae. Pp 381–387. In: Flora North America Editorial Committee (ed). Flora of North America, north of Mexico, Vol. 3. Oxford University Press, New York.

——— 2004. Narcotic plants as sources of medicinals, nutraceuticals, and functional foods. Pp. 11–67. In: F.-F. Hou, H.-S. Lin, M.-H. Chou & T.-W. Chang (eds.), Proceedings of the international symposium on the development of medicinal plants, 24–25 Aug. 2004, Hualien. Hualien District Agricultural Research and Extension Station, Hualien.

——— 2007. Cannabis as a source of medicinals, nutraceuticals, and functional foods. Pp 1–39. In: S. N. Acharya & J. E. Thomas (eds). Advances in Medicinal Plant Research. Trivandrum, Research Signpost / Transworld Research Network, Kerala.

——— 2009. Top 100 food plants: the world’s most important culinary crops. National Research Council Press, Ottawa.

——— 2011. Alfalfa and relatives: evolution and classification of Medicago. NRC Research Press, Ottawa, and CABI, Wallingford.

——— 2012. Hemp. Pp 220–222. In: S. Fredericks, L. Shen, S. Thompson, & D. Vasey (eds). The Berkshire Encyclopedia of Sustainability: Vol. 4. Natural Resources and Sustainability. Berkshire Publishing, Great Barrington.

——— 2013. North American cornucopia: top 100 indigenous food plants. CRC Press, Boca Raton.

——— 2014a. Blossoming treasures of biodiversity. 44. Saguaro – threatened monarch of the desert. Biodiversity 15(1): 39–53.

——— 2014b. Hemp fiber and composites for the 21st century. Pp 29–64. In: V. K. T. Thakur & J. Njuguna (eds). Natural fibers and composites. Studium Press, Houston.

——— & T. Antle. 2003. A preliminary study of pollen dispersal in Cannabis sativa. Journal of Industrial Hemp 8(2): 37–50.

——— & ———. 2007. A study of cotyledon asymmetry in Cannabis sativa. Journal of Industrial Hemp 12(1): 3–14.

——— & H. D. Beckstead. 1973a. Common cannabinoid phenotypes in 350 stocks of Cannabis. Lloydia 35: 144–165.

——— & ———. 1973b. Cannabinoid phenotypes in Cannabis. Nature 245: 147–148.

——— & B. Brookes. 2012. Temperature and moisture content for storage maintenance of germination capacity of seeds of industrial hemp, marijuana, and ditchweed forms of Cannabis sativa. Journal of Natural Fibers 9(4): 240–255.

——— & P. M. Catling. 2009. Blossoming treasures of biodiversity. 27. Cannabis – Dr. Jekyll and Mr. Hyde. Biodiversity 10(1): 31–38.

——— & A. Cronquist. 1976. A practical and natural taxonomy for Cannabis. Taxon 25: 405–435.

_____ & D. Marcus. 2000. Hemp germplasm trials in Canada. Irregularly paginated. In: Nova Institute (corporate ed.), Proceedings third international symposium bioresource hemp. Nova Corporation, Hürth.

——— & ———. 2002. Hemp – a new crop with new uses for North America. Pp 284–326. In: J. Janick & A. Whipkey (eds). Trends in new crops and new uses. ASHS Press, Alexandria.

——— & ———. 2003. Tetrahydrocannabinol levels in hemp (Cannabis sativa) germplasm resources. Economic Botany 57: 545–558.

——— & S. G. U. Naraine. 2015. Size matters: evolution of large drug-secreting resin glands in elite pharmaceutical strains of Cannabis sativa (marijuana). Genetic Resources and Crop Evolution. doi:10.1007/s10722-015-0254-2.

———, H. D. Beckstead & A. Chan. 1975. The evolution of cannabinoid phenotypes in Cannabis. Economic Botany 29: 219–232.

———, P. Jui & L. P. Lefkovitch. 1976. A numerical taxonomic analysis of Cannabis with special reference to species delimitation. Systematic Botany 1: 67–84.

———, T. Pocock & P. B. Cavers. 2003. The biology of Canadian weeds. 119. Cannabis sativa L. Canadian Journal of Plant Sciences 83: 217–237.

———, D. Marcus, A. McElroy & G. Butler. 2007. Apparent increase in biomass and seed productivity in hemp (Cannabis sativa) resulting from branch proliferation caused by the European corn borer (Ostrinia nubilalis). Journal of Industrial Hemp 12(1): 15–26.

Smith, M. H. 2012. Heart of dankness. Underground botanists, outlaw farmers, & the race for the Cannabis Cup. McClelland & Stewart, Toronto.

Snoeijer, W. 2002. A checklist of some Cannabaceae cultivars. Part a: Cannabis. Division of Pharmacology, Leiden/Amsterdam Center for Drug Research, Leiden.

Spelman, K. 2009. “Silver bullet” drugs vs. traditional herbal remedies: perspectives on malaria. HerbalGram 84: 44–55.

Spencer, R. D. 1999. Cultivated plants and the codes of nomenclature – towards the resolution of a demarcation dispute. Pp 171–181. In: S. Andrews, A. C. Leslie, & C. Alexander (eds). Taxonomy of cultivated plants: third international symposium. Royal Bontanic Gardens, Kew.

——— & R. G. Cross. 2007a. The international code of botanical nomenclature (ICBN), the international code of nomenclature for cultivated plants (ICNCP), and the cultigen. Taxon 56: 938–940.

——— & ———. 2007b. The cultigen. Pp. 163–167. In: R. G. van den Berg, N. Groendijk-Wilders, C. Alexander & W. L. A. Hetterscheid (eds.), Proceedings of the fifth international symposium on the taxonomy of cultivated plants. International Society for Horticultural Science, Leuven.

Spooner, D. M., R. G. van den Berg, W. L. A. Hetterscheid & W. A. Brandenburg. 2003. Plant nomenclature and taxonomy. An horticultural and agronomic perspective. Horticultural Reviews 28: 1–59.

Stearn, W. T. 1952. Proposed international code of nomenclature for cultivated plants. Historical introduction. Journal of the Royal Horticultural Society 77: 157–173.

Stokes, J. R., R. Hartel, L. B. Ford & T. B. Casale. 2000. Cannabis (hemp) positive skin tests and respiratory symptoms. Annals of Allergy, Asthma and Immunology 85: 238–240.

Stout, J. M., Z. Boubakir, S. J. Ambrose, R. W. Purves & J. E. Page. 2012. The hexanoyl-CoA precursor for cannabinoid biosynthesis is formed by an acyl-activating enzyme in Cannabis sativa trichomes. The Plant Journal 71: 353–365.

Styles, B. T. (ed). 1986. Infraspecific classification of wild and cultivated plants. Clarendon, Oxford.

Sytsma, K. J., J. Morawetz, J. C. Pires, M. Nepokroeff, E. Conti, M. Zjhra, J. C. Hall & M. W. Chase. 2002. Urticalean rosids: circumscription, rosid ancestry, and phylogenetics based on rbcL, trnL-trnF, and ndhF sequences. American Journal of Botany 89: 1531–1546.

Taura, F., S. Morimoto, Y. Shoyama & R. Mechoulam. 1995. First direct evidence for the mechanism of delta-1-tetrahydrocannabinoloic acid biosynthesis. Journal of the American Chemical Society 38: 9766–9767.

———, ——— & ———. 1996. Purification and characterization of cannabidiolic-acid synthase from Cannabis sativa L. The Journal of Biological Chemistry 271: 17411–17416.

———, S. Sirikantaramas, Y. Shoyama, K. Yoshikai, Y. Shoyama & S. Morimoto. 1997. Cannabidiolic-acid synthase, the chemotype-determining enzyme in the fiber-type Cannabis sativa. FEBS Letters 581: 2929–2934.

Thomas, T. G., S. K. Sharma, A. Prakash & B. R. Sharma. 2000. Insecticidal properties of esential oil of Cannabis sativa Linn. against mosquito lavae. Entomon 25: 21–24.

Tournois, J. 1912. Influence de la lumière sur la floraison du houblon japonais et du chanvre déterminées par des semis haitifs. Comptes Rendus Hebdomadaires des Séances de l’Academie des Sciences, Paris 155: 297–300.

Toyota, M., T. Shimamura, H. Ishii, M. Renner, J. Braggins & Y. Asakawa. 2002. New bibenzyl cannabinoid from the New Zealand liverwort Radula marginata. Chemical and Pharmaceutical Bulletin (Tokyo) 50: 1390–1392.

Turner, C., P. Fetterman, K. Hadley & J. Urbanek. 1975. Constituents of Cannabis sativa L. X. Cannabinoid profile of a Mexican variant and its possible correlation to pharmacological activity. Acta Pharmaceutica Jugoslavica 25: 7–15.

Turner, J. C., J. K. Hemphill & P. G. Mahlberg. 1980. Trichomes and cannabinoid content of developing leaves and bracts of Cannabis sativa L. (Cannabaceae). American Journal of Botany 67: 1397–1406.

———, ——— & ———. 1981a. Interrelationships of glandular trichomes and cannabinoid content. I. Developing pistillate bracts of Cannabis sativa L. (Cannabaceae). Bulletin on Narcotics 33(2): 59–69.

———, ——— & ———. 1981b. Interrelationships of glandular trichomes and cannabinoid content. II. Developing vegetative leaves of Cannabis sativa L. (Cannabaceae). Bulletin on Narcotics 33(3): 63–71.

Tutin, T. G. & J. R. Edmonson. 1993. Cannabaceae. Pp 78. In: T. G. Tutin & J. R. Edmonson (eds). Flora Europaea, Volume 1, ed. 2nd. University of Cambridge, Cambridge.

United Nations Office on Drugs and Crime. 2014. World drug report 2014. http://www.unodc.org/wdr/en/cannabis.html. (Accessed July 10, 2015.)

Valle, J. R., J. E. V. Vieira, J. G. Aucélio & I. F. M. Valio. 1978. Influence of photoperiodism on cannabinoid content of Cannabis sativa L. Bulletin on Narcotics 30(1): 67–68.

Van Bakel, H., J. M. Stout, A. G. Cote, C. M. Tallon, A. G. Sharpe, T. R. Hughes & J. E. Page. 2011. The draft genome and transcriptome of Cannabis sativa. Genome Biology. doi:10.1186/gb-2011-12-10-r102 http://genomebiology.com/content/pdf/gb-2011-12-10-r102.pdf. (Accessed July 10, 2015.)

Van der Werf, H. M. G. 1994. Crop physiology of fibre hemp (Cannabis sativa L.). Wageningen Agricultural University, Wageningen. (Published Doctoral thesis.)

Vavilov, N. I. 1926. The origin of the cultivation of “primary” crops, in particular of cultivated hemp. Trudy po Prikladnoj Botanike i Selekcii 16(2): 221–233.

——— 1931. The role of Central Asia in the origin of cultivated plants. Bulletin of Applied Botany, Genetics, and Plant Breeding 26(3): 3–44. (In Russian and English).

Veliky, I. A. & K. Genest. 1972. Growth and metabolites of Cannabis sativa cell suspension cultures. Lloydia 35: 450–456.

Verkaar, H. J. 1986. When does grazing benefit plants? Trends in Ecology and Evolution 1: 168–169.

Virovets, V. G. 1996. Selection for non-psychoactive hemp varieties (Cannabis sativa L.) in the CIS (former USSR). Journal of the International Hemp Association 3(1): 13–15.

Vogl, C. R., H. Mölleken, G. Lissek-Wolf, A. Surböck & J. Kobert. 2004. Hemp (Cannabis sativa L.) as a resource for green cosmetics: yield of seed and fatty acid composition of 20 varieties under the growing conditions of organic farming in Austria. Journal of Industrial Hemp 9(1): 51–68.

Walter, H. 1938. Cannabis. Pp 875–909. In: O. V. Kirchner, E. Loew, C. Schröter, & W. Wangerin (eds). Lebengeschichte der Blütenpflanzen Mitteleuropas, Vol. 2. Eugen Ulment, Stuttgart. (In German).

Watson, D. P. & R. C. Clarke. 1997. The genetic future of hemp. Pp. 122–127. In: Nova Institute (corporate ed.), Proceedings of the bioresource hemp symposium, Frankfurt am Main, Germany, Feb. 27–March 2, 1997. Nova Institute, Hürth.

West-Eberhard, M. J. 2003. Developmental plasticity and evolution. Oxford University Press, New York.

Whalley, B. J., J. D. Wilkinson, E. M. Williamson & A. Constanti. 2004. A novel component of cannabis extracts potentiates excitatory synaptic transmission in rat olfactory cortex in vitro. Neuroscience Letters 365: 58–63.

Whitman, T. & L. W. Aarssen. 2010. The leaf size/number trade-off in herbaceous angiosperms. Journal of Plant Ecology 3: 49–58.

Wilkinson, J. D., B. J. Whalley, D. Baker, G. Pryce, A. Constanti, S. Gibbons & E. M. Williamson. 2003. Medicinal cannabis: is Δ9-tetrahydrocannabinol necessary for all its effects? Journal of Pharmacy and Pharmacology 55: 1687–1694.

Wirtshafter, D. 1995. Nutrition of hemp seeds and hemp seed oil. Pp. 546–555. In: Nova Institute (corporate ed.), Bioresource hemp – proceedings of the symposium, Frankfurt am Main, Germany, March 2–5, 1995. 2nd edition. Hemptech, Ojai.

Wu, Z., Z.-K. Zhou & B. Bartholomew. 2003. Cannabaceae Endlicher. Pp 74–75. In: W. Zheng-yi & P. H. Raven (eds). Flora of China, Vol. 5. Missouri Botanical Garden Press, St. Louis.

Yampolsky, C. & H. Yampolsky. 1922. Distribution of sex forms in the phanerogamic flora. Gebruder Borntraeger, Leipzig.

Yang, M.-Q., R. van Velzen, F. T. Bakker, A. Sattarian, D.-Z. Li & T.-S. Yi. 2013. Molecular phylogenetics and character evolution of Cannabaceae. Taxon 62: 473–485.

Zhang, L. L., R. Y. Zhu, J. Y. Chen, J. M. Chen & X. X. Feng. 2008. Seawater-retting treatment of hemp and characterization of bacterial strains involved in the retting process. Process Biochemistry 43: 1195–1201.

Zhatov, A. I. 1983. Variability of pollen grains of polyploid hemp. Tsitologiya i Genetika 17: 47–51. (In Russian).

Zohary, D. 2004. Unconscious selection and the evolution of domesticated plants. Economic Botany 58: 5–10.

Zuardi, A. W., J. A. S. Crippa, J. E. C. Hallak, F. A. Moreira & F. S. Guimarães. 2006. Cannabidiol, a Cannabis sativa constituent, as an antipsychotic drug. Brazilian Journal of Medical and Biological Research 39: 421–429.