Abstract
The genus Oreocharis Bentham (1876: 1021) was redefined on the basis of molecular phylogenetic studies (Möller et al. 2011a, b) to include species of ten additional, mostly small-sized and monotypic genera of Chinese Gesneriaceae: Ancylostemon Craib (1920[“1919”]: 233), Bournea Oliv. in Hooker (1893: t. 2254), Briggsia s. str. Craib (1920[“1919”]: 236), Dayaoshania Wang (1983: 319), Deinocheilos Wang (1986: 1), Isometrum Craib (1920[“1919”]: 250), Opithandra Burtt (1956: 162), Paraisometrum Wang in Weitzman et al. (1998[“1997”]: 431), Thamnocharis Wang (1981: 485), and Tremacron Craib (1918: 217). It is now florally one of the most diverse genera in Old World Gesneriaceae besides the enlarged Petrocodon s. l. Hance (1883: 167) (Weber et al. 2011).