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Slider Images from: Cycad Biology and Conservation: The 9th International Conference on Cycad Biology.
Edited by Nan Li, Dennis Wm. Stevenson, and M. Patrick Griffith.
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AbstractSTEVENSON, D. W. (New York Botanical Garden, Bronx, New York 10458, USA), R. OSBORNE (University of Natal, King George V Avenue, Durban 400 I, South Africa), and J. HENDRICKS (110 Brookmeade Avenue, Statesville, North Carolina 28677, USA). A world list of cycads. Memoirs of The New York Botanical Garden 57: 200–206. 1990. A list of cycad genera, species, and infraspecific taxa is given together with a general indication of their distribution. Brief comments are given about the status of the taxonomy of each genus. Those genera in the most need of taxonomic revision are indicated.
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Dennis William Stevenson holds a Ph.D. University of California, Davis 1975. He is Vice President for Laboratory Research at The New York Botanical Garden and Editor, Botanical Review. His expertise is in Cycads, Monocots, and Genomics. His major research interests in the past few years have focused upon the evolution and classification of the Cycadales (cycads) and their placement in seed plant phylogeny. He is conducting research on various facets of the biology of the Cycadales and Gnetales. These facets include reproductive biology, anatomy, cytology, molecular systematics, as well as taxonomic monographs and treatments of these groups for various floras being prepared for the neotropics. Another major research interest is the systematics of the monocots, particularly, the Commelinidae. The topics under investigation include developmental floral morphology, embryology, and inflorescence structure because this basic information is incomplete or unknown for many of these families. These data are being combined with gene sequence data to generate phylogenetic hypothesis on the origin and classification of the monocots. Dennis Wm. Stevenson's Author Page
Roy Osborne was born in London, England, during WW II. After his family emigrated to South Africa in 1948, he attended Grey High School at Port Elizabeth and then studied botany and chemistry at Rhodes University, Grahamstown. It was during this period that he first became acquainted with cycads, many species of which are endemic to southern Africa. Roy held various scientific positions in Zimbabwe and South Africa and later continued postgraduate studies in botany and chemistry at the University of Natal, obtaining a Ph.D. for cycad-oriented research in 1988. He continued his dual interest in the subjects, and was later appointed Professor of Chemistry at the University of Natal. Concerned about longer-term prospects in southern Africa, Roy, his wife Angela, and their four children, relocated to Australia in 1996. They settled in Brisbane, Queensland, where Roy is currently employed as Senior Chemist by Queensland Government. Roy was founder and first President of the Cycad Society of South Africa, and has been a long-serving representative to the IUCN Cycad Specialist Group. He has attended most of the International Cycad Conferences and has been involved, as author, co-author, editor and publisher, in the production of some 175 books and scientific papers. He is best known for his collaborative effort in the popular texts Cycads of Australia (2001) and Cycads of Vietnam (2007). Roy maintains eclectic interests in botany, horticulture, music, and foreign languages. Roy Osborne's Author Page