| Théophile Alexis Durand | |
| Birth Date: | 4 September 1855 |
| Fields: | Botany |
| Alma Mater: | University of Liège |
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| Author Abbrev Bot: | T.Durand |
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Théophile Alexis Durand (4 September 1855, in Saint-Josse-ten-Noode – 12 January 1912) was a Belgian botanist.
He studied pharmacy at the University of Liège, afterwards travelling to Switzerland, where he befriended botanist Henri François Pittier, with whom he collaborated on studies of Swiss flora. When Pittier later moved to Costa Rica, he provided Durand with dried specimens for study purposes.[1] Both together edited the exsiccata-like series Plantae Costaricenses exsiccatae.[2] Beginning in 1879, he was associated with the National Botanic Garden of Belgium, where in 1901, he succeeded François Crépin as its director. In 1910 he was appointed president of the International Botanical Congress, held in Brussels.[3]
With his daughter, illustrator Hélène Durand, he published "Sylloge Florae Congolanae" (1909).[3] He also made significant contributions to the "Index Kewensis" (first supplement, 1901–1906). Some plants with the specific epithet of durandii commemorate his name, an example being Celtis durandii (family Cannabaceae).[1]