Abstract
A new species of Gesneriaceae from southern China, Petrocodon lancifolius, is described and illustrated. It is similar to another stenochoric species, P. scopulorum, but is differentiated from its congeners by several characters, such as the shape of the leaf blades, the indumentum of peduncle, pedicels, the outside of bracts and corolla, the corolla shape, limb and lobes, the ovary, pistil, style, and phenology. A description of P. lancifolius, together with illustrations, a distribution map, habitat description, conservation assessment and a diagnostic comparison with P. scopulorum are presented.