Didymocarpus puhoatensis (Gesneriaceae), a new species from Vietnam.

Didymocarpus puhoatensis, a new species from Vietnam is described and illustrated with photographs. The new species is morphologically similar to D. brevicalyx and D. epithemoides, but can be easily distinguished by a combination of characters. So far, five species have been recorded in the genus Didymocarpus from Vietnam. [ABSTRACT FROM AUTHOR]