Researchers at MO
	George Yatskievych, Ph.D. Curator, and Director, Flora of Missouri Project Missouri Botanical Garden P.O. Box 299 St. Louis, MO 63166-0299 USA Research Associate Professor and Adjunct Graduate Faculty, University of Missouri–St. Louis Research Associate, Arizona-Sonora Desert Museum, Tucson office phone: +1-314-577-9522 fax: +1-314-577-0830 email: george.yatskievych@mobot.org Ph.D., Indiana University, 1990 M.S., University of Arizona, 1982 B.S., University of Arizona, 1979 General Research Interests	Photo courtesy of Bill Summers
	Floristics of the United States (particulary Missouri) Floristics of Mexico Systematics of Pteridophytes Systematics of Parasitic Flowering Plants Plant Conservation Research Emphases Revision of Steyermark's Flora of Missouri Holoparasitic Orobanchaceae, Flora of North America Pteridophytes, Vascular Plants of Arizona Selected Publications Yatskievych, G., and J. L. Contreras J. 2009. A new genus of holoparasitic Orobanchaceae from Mexico. Novon 19: 266–276. Collins, L. T., A. E. L. Colwell, and G. Yatskievych. 2009. Orobanche riparia (Orobanchaceae), a new species from the American Midwest. J. Bot. Res. Inst. Texas 3: 3–11. Mora-Olivo, A., and G. Yatskievych. 2009. Salvinia molesta in Mexico. Amer. Fern J. 99: 56–58. Yatskievych, G., and S. Kobal. 2008. The genus Cystopteris at Waterfall Glen Forest Preserve, DuPage County Illinois. Amer. Fern J. 98: 79–83. Yatskievych, G., and M. D. Windham. 2008. Vascular Plants of Arizona: Azollaceae, Blechnaceae, Dennstaedtiaceae, Equisetaceae, Salviniaceae. Canotia 4: 31–49. Raveill, J. A., and G. Yatskievych. 2008. Heliotropium europaeum (Heliotropiaceae) new to Missouri. Missouriensis 28/29: 10–17. Yatskievych, G., and A. L. Arbeláez A. 2008. A new species and three generic transfers in the fern genus Notholaena (Pteridaceae). Novon 18: 120–124. Meijer, W., and G. Yatskievych. 2007. Rafflesiaceae. P. 476 in V. Funk, T. Hollowell, P. Berry, C. Kelloff, and S.N. Alexander. Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contr. U.S. Natl. Herb. 55: 1–584. Yatskievych, G. 2007. A new combination in Glossopetalon (Crossosomataceae). Novon 17: 529–530. Phipps, J. B., G. Yatskievych, and K. Wood. 2007. Typification of Crataegus names from the Missouri flora. Harvard Pap. Bot. 11: 179–197. Yatskievych, G. 2006. Steyermark’s Flora of Missouri, Volume 2. Errata. Missouriensis 27: 23–25. Hill, R., and G. Yatskievych. 2006. Taxonomic and nomenclatural differences between Steyermark’s Flora of Missouri and the Revised Flora of Missouri, Volume 2. Missouriensis 27: 26–46. Yatskievych, G. 2006. Steyermark’s Flora of Missouri, Second Edition, Volume 2. Missouri Botanical Garden Press, St. Louis. Windham, M. D., and G. Yatskievych. 2005. A novel hybrid Polypodium from Arizona. Amer. Fern J. 95:57–67. Yatskievych, G. 2004 (2005). How faster to master the Aster disaster: a primer on the changing nomenclature of Missouri asters. Missouriensis 25:26–32. Yatskievych, G., and W. Meijer. 2004. Rafflesiaceae. Pp. 407-410 in P. E. Berry, K. Yatskievych, and B. K. Holtz, eds. Flora of the Venezuelan Guayana, Volume 8. Missouri Botanical Garden Press, St. Louis. Yatskievych, G. 2004. Lennoaceae. Pp. 209-211, pl. 26C in N. Smith, S. A. Mori, A. Henderson, D. W. Stevenson, and S. V. Heald, eds. Flowering Plants of the Neoropics. Princeton University Press and New York Botanical Garden Press, Princeton and New York. Windham, M. D., and G. Yatskievych. 2003. Chromosome studies of cheilanthoid ferns (Pteridaceae: Cheilanthoideae) from the western United States and Mexico. Amer. J. Bot. 90: 1788-1800. Windham, M. D., and G. Yatskievych. 2003. Revised nomenclature and a new North American record for the villose cliff brake (Pellaea, Pteridophyta). Novon 13:358-362. Yatskievych, G., and A. R. Smith. 2003. Typification of Notholaena R. Br. (Pteridaceae). Taxon 52:331-336. Yatskievych, G. 2001. Lennoaceae. Pp. 1213-1214 in W. D. Stevens, C. Ulloa U., A. Pool, and O. M. Montiel, eds. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85(2). Yatskievych, G., and J.A. Raveill. 2001. Notes on the increasing proportion of non-native angiosperms in the Missouri flora, with reports of three new genera for the state. Sida 19:701-709. Yatskievych, G. 1999. Steyermark's Flora of Missouri, 2nd ed., Vol. 1. Missouri Department of Conservation, Jefferson City, MO. Yatskievych, G., & R. Riba. 1999. Phanerophlebia. Pp. 26–38 in Consejo Nacional de la Flora de México, A.C. (editors), Flora de México, Volume 6, Fascicle 4. Consejo Nacional de la Flora de México, Mexico City. Yatskievych, G., & J. Piper. 1998. Polypodiopsida (12 families). Pp. 178–191 in P.S. Martin, D. Yetman, M. Fishbein, P. Jenkins, T.R. Van Devender, & R.K. Wilson (editors), Gentry's Río Mayo Plants, revised edition. University of Arizona Press, Tucson. Flora of Missouri Assistants Rex Hill Kathleen Wood Flora of Missouri Volunteers Nancy Parker Ann Larson Jack Harris