Karl Andreas Geyer

Karl Andreas Geyer (in the USA better known as Carl A. Geyer, born November 30, 1809 in Dresden, Saxony, † November 21, 1853 ) was a German botanist. Its official botanical author abbreviation is " Geyer ".

Life

Geyer was the son of a gardener and grew up in Dresden. After some lessons in Latin, he began as an apprentice at the Botanical Garden of Zabeltitz near Great grove. In 1830 he returned to Dresden, where he became assistant at the botanical garden. In February 1835, he left Dresden and emigrated to the United States.

From New York City he went immediately to the west to St. Louis, where he arrived in April 1835. He started immediately with expeditions to collect plants. The Missouri River His first trip took him up the river in a controlled area at the bottom of Indians Platte River. End of October 1838 he had at least more than 450 plants collected, most of them in Minnesota. From 1838 to 1840 he accompanied Joseph Nicolas Nicollet. In 1841 and 1842 he collected for Georg Engelmann plants in Iowa, Illinois and Missouri. His most successful tour took him in 1844 as a companion of the Scottish explorer Sir William Drummond Stewart ( 1795-1871 ) through Missouri, Nebraska and the mountains of Wyoming. Geyer left the research group and made in Idaho and Washington excursions. He rose from the mountains along the Columbia River down to Fort Vancouver. About Hawaii, he returned to Europe. His collected plants he gave to William J. Hooker at the Royal Botanic Garden at Kew. Hooker published the results in the Journal of Botany. Thirteen plant species were named after Geyer, geyeri among other Allium geyeri, Aster geyeri, Astragalus geyeri, Carex geyeri, Coggswellia geyeri, delphinium and Euphorbia geyeri.

In the fall of 1845 Geyer bought a plot in Meissen and founded a nursery. In 1846 he married. Since 1851 he was editor of the gardening magazine The Chronicle of the garden movement. He died on 21 November 1853.

Among other things he found in Cass County, Illinois Copies of the Hahnenfußgewächses Trautvetteria caroliniensis ( Walt. ) Vail, which was then there never observed.

Writings

• Virginia: Physico- geographical and statistical description of the same; with special jerk view of German emigration. Goedsche, Meissen 1848.
• Chronicle of the garden movement. C. C. Klinkicht & Son, Meissen from 1851 to 1853. Band 1, Band 2, Volume 3