Georges Bronckart's collections and drawings of Vietnam orchids

Georges Bronckart (born 1881) was a Belgian orchid amateur who collected in Vietnam between ca. 1900 to 1905. He also made illustrations of some of his collections. Duplicate material was sent to the Belgian botanists Cogniaux and De Wildeman. The former described five new varieties within the genera Aerides, Dendrobium, Phalaenopsis and Stauropsis, while De Wildeman described four new species of Dendrobium based on this material. Only one of the nine taxa remains accepted today, viz. Dendrobium ochraceum De Wild., a species endemic to central Vietnam. A concise biography of Bronckart and his contribution to horticulture is presented. The taxonomic section summarizes the typification of the names based on his material, and designates lectotypes or neotypes where necessary.