Mariette Rousseau

Marietta Hannon Rousseau, also known as Mariette Rousseau (1850–1926), was a Belgian mycologist and taxonomist specializing in cryptogamic plants and fungi. She published several works on fungi from 1879 to 1905 with Elisa Caroline Bommer, focusing primarily on Belgium.

Biography Youth and marriage Marietta was born on 20 March 1850 to Joseph Hannon, a professor of zoology and comparative anatomy at Brussels University. although the rest of her education is not known. She was friends with the artist James Ensor with whom she corresponded, and she appeared occasionally as the subject of his paintings and sketches. The genus of Roussoella was named after her by Italian mycologist Pier Andrea Saccardo. The genus Roussoellopsis was also named after her.

Her herbarium and types are in the BR Herbarium Catalogue, located at the Meise Botanic Garden. Her other materials can be found at the Plant Pathology Herbarium at Cornell University and the US National Fungus Collection.

Selected list of publications List from Maroske and May:

Bommer E, Rousseau M (1879). Catalogue des champignons observé aux environs de Bruxelles. Bulletin de la Société Royale de Botanique de Belgique18(3): 61–219 [reprinted, TL-2 627]. Bommer E, Rousseau M (1884). Florule mycologique des environs de Bruxelles. Bulletin de la Société Royale de Botanique de Belgique 23(1): 13–365 [reprinted, TL-2 628]. Bommer E, Rousseau M (1886). Contributions à la flore mycologique de Belgique. Bulletin de la Société Royale de Botanique de Belgique 25(1): 13–365. Bommer E, Rousseau M (1887). Contributions à la flore mycologique de Belgique, II. Bulletin de la Société Royale de Botanique de Belgique 26(1): 187–241. Bommer E, Rousseau M (1890). Contributions à la Flore Mycologique de Belgique, III. Bulletin de la Société Royale de Botanique de Belgique 29(1): 205–302. Bommer E, Rousseau M (1896). Primitiae Florae Costaericensis par Th. Durand et H. Pittier. Troisième fasicule. Fungi. Bulletin de la Société Royale de Botanique de Belgique 35: 151–166. Bommer E & Rousseau M (1905). Champignons. Résultats Voyage du S. Y. Belgica en 1897–1898–1899 ... Rapports scientifiques .... 6: 1–15, pl. 1–5.