Petrocodon wenshanensis, a new species of Gesneriaceae from southwestern China.

A new species of Petrocodon, P. wenshanensis from Yunnan province of southwestern China, is described and illustrated here. P. wenshanensis morphologically closely resembles P. jingxiensis and P. lithophilus, but differs in vegetative and generative characters. Differences between the new species and others Petrocodon species occurring in Yunnan Province are also shown in the identification key.