Jesse More Greenman

Jesse More Greenman (December 27, 1867 – January 20, 1951) was an American botanist. He specialized in tropical flora, with emphasis on plants from Mexico and Central America. He was an authority on the genus Senecio and noted for his work at the Missouri Botanical Garden.

Life and career Greenman was born in North East, Pennsylvania. Greenman earned his baccalaureate from the University of Pennsylvania 1893, then became an instructor for a year. In 1894 he went to Harvard University studying and working in the Gray Herbarium until 1899 when he earned his master's degree. There he began a long association with Benjamin Lincoln Robinson. remaining there until his retirement in 1943. While he was curator, the collection of flora there grew from 600,000 to about 1,500,000.

"The genera Greenmania P. Hieronymus and Greenmaniella W.M. Sharp were both named after him. Senecio multivenius Benth., S. cooperi Greenm., and S. megaphyllus Greenm. were reclassified in the new genus Jessea H. Robinson and J. Cuatrecases in Greenman's honor."

Publications 1938. Studies of South American Senecios. 28 pp. 1929. A New Variety of Senecio aureus L. 2 pp. 1929. New Agaves from Southwestern United States 1918. A New Selaginella from Mexico 1917. Two exotic Compositae in North America. 4 pp. 1916. A New Senecio from Jamaica. 2 pp. 1915. The Yareta Or Vegetable Sheep of Peru 1914. Descriptions of North American Senecioneae 1912. I. New species of Cuban Senecioneae. II. Diagnoses of new species and notes on other spermatophytes, chiefly from Mexico and Central America. Fieldiana. Botany series v. 2, Nº 8 Art. 1911. Some Canadian Senecios. 5 pp. 1908. The Generic Name Goldmania 1908. Notes on the Genus Senecio. 69 pp. 1907. New Or Noteworthy Spermatophytes From Mexico, Central America, And The West Indies. Kessinger Publishing, LLC. 1906. Studies in the Genus Citharexylum. 190 pp. Field Columbian Museum Publication 117, Bot.series, Vol. 2 Nº 4. 1906. Two New Species from Northwestern America 1905. A New Krynitzkia 1905. Descriptions of Spermatophytes from the Southwestern United States, Mexico, and Central America. Contributions from the Gray Herbarium of Harvard Univ 31. Editor Acad. 36 pp. 1904. Notes on Southwestern and Mexican Plants 1904. Diagnoses and Synonymy of Mexican and Central American Spermatophytes. Proc. of the Am. Academy of Arts and Sci. 40. Editor Acad. 25 pp. 1903. New and otherwise noteworthy Angiosperms from Mexico and Central America. Contrib. from the Gray Herbarium, Harvard Univ. 25. Editor Gray Herb. of Harvard Univ. 120 pp. 1901. The Genus Senecio in New England. 5 pp. 1900. New Species and Varieties of Mexican Plants. 315 pp. 1899. Northwestern Plants, Chiefly from Oregon. 6 pp.