Taxonomic notes on genus Isodon (Nepetoideae, Lamiaceae) from China I: revision of four species
2 September 2016
Chen, Yaping; Xiang, Chun-Lei; Hu, Guo-Xiong; Peng, HuaA taxonomic revision of four species of Isodon (I. alborubrus, I. lungshengensis, I. rubescens, and I. scrophularioides) from China is here presented. Isodon alborubrus, previously regarded as conspecific with I. sculponeatus, is resurrected as a distinct species. Seven synonyms are newly proposed: I. gibbosus as a synonym of I. lungshengensis, I. henryi, Rabdosia rubescens var. rubescens f. lushanensis, R. rubescens var. taihangensis, R. rubescens var. lushiensis, and I. rubescens var. eglandulosus of I. rubescens var. rubescens, and R. megathyrsoides of I. scrophularioides. Information about nomenclature, description, phenology, distribution and habitat, taxonomic notes as well as specimens examined is provided for each species.