| Alvan Wentworth Chapman | |
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Flora of the Southern United States, by Alvan Wentworth Chapman
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| Born | September 28, 1809 Southampton, Massachusetts |
| Died | April 6, 1899 (aged 89) |
| Fields | Medicine Botany |
| Author abbreviation (botany) | Chapm. |
Alvan Wentworth Chapman (September 28, 1809 – April 6, 1899) was an American physician and botanist who wrote Flora of the Southern United States, the first comprehensive description of US plants in any region beyond the northeastern states.
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He was born in Southampton, Massachusetts, the youngest of five children. In 1830, he graduated from Amherst College with a degree in classics. He moved to Georgia and then Florida where he held various teaching positions, and married Mary Ann Hancock in 1839. In the early 1840s, he received a medical education, acquiring his MD in 1846. In 1847, he settled in Apalachicola, Florida, remaining there for the rest of his life working as a physician.
His botanical interest seems to have started when he lived in Georgia, adjacent to the botanically unexplored regions of northern Florida. Working in near isolation, in his spare time, he had a manuscript by 1859, and visited Harvard University for five months, consulting with Asa Gray and arranging for publication, which occurred in 1860. Chapman brought out a second edition in 1884, and a third edition in 1897.