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Michael H. Grayum, Ph.D.
Curator
Research

Adjunct Assistant Professor, University of Missouri-St. Louis

office phone: + 1 (314) 577-9519
fax: + 1 (314) 577-9596
email: michael.grayum@mobot.org

Missouri Botanical Garden
P.O. Box 299
St. Louis, MO 63166-0299
USA

Education
Ph.D., University of Massachusetts, Amherst, 1984
B.A., California State University, Northridge, 1972

Costa Rican floristics Systematics of Araceae Systematics of ArecaceaeManual de Plantas de Costa Rica
Available upon request
Research Emphases Systematics of Philodendron subgenus Pteromischum (Araceae) Floristics of Costa Rica (especially monocots) Systematics of Central American Arecaceae Systematics of Central American Pipera
Selected Publications 2009. Two new trifoliolate-leaved species of Cucurbitaceae (Cucurbiteae) from Central and South America. Novon 19: 465-474. 2006. The identity and typification of Guarea hoffmanniana C. DC. (Meliaceae). Taxon 55: 1005-1008. 2005. Bryophytes of the Santa Elena Peninsula and Islas Murciélago, Guanacaste, Costa Rica, with special attention to neotropical dry forest habitats. Lankesteriana 5: 53-61. (with G. Dauphin L.). 2003. Arecaceae. Pp. 201-293 in, B. E. Hammel, M. H. Grayum, C. Herrera & N. Zamora (eds.), Manual de plantas de Costa Rica. Vol. II. Gimnospermas y monocotiledóneas (Agavaceae-Musaceae). Monogr. Syst. Bot. Missouri Bot. Gard. 92: 1-694. 2003. Araceae. Pp. 59-200 in, B. E. Hammel, M. H. Grayum, C. Herrera & N. Zamora (eds.), Manual de plantas de Costa Rica. Vol. II. Gimnospermas y monocotiledóneas (Agavaceae–Musaceae). Monogr. Syst. Bot. Missouri Bot. Gard. 92: 1-694. 2002. Vegetación del Parque Nacional Carara, Costa Rica. Brenesia 57-58: 25-66. (with Q. Jiménez M.). 1996. Revision of Philodendron subgenus Pteromischum (Araceae) for Pacific and Caribbean tropical America. Syst. Bot. Monogr. 47: 1-233. 1992. Comparative external pollen ultrastructure of the Araceae and putatively related taxa. Monogr. Syst. Bot. Missouri Bot. Gard. 43: 1-167. 1991. Systematic embryology of the Araceae. Bot. Rev. (Lancaster) 57: 167-203. 1990. Evolution and phylogeny of the Araceae. Ann. Missouri Bot. Gard. 77: 628-697.