Reassessment of Oliver (Gesneriaceae) based on molecular and palynological evidence.

The former genus is endemic to China, including two species, has been under consideration for incorporation into the expanded genus s.l. in Gesneriaceae. The phylogenetic tree inferred from two DNA sequences (L-F and ITS) showed that this genus is deeply nested into s.l. However, the new tree from seven ones (B-L, H-, 132, C-D, L-F, T-L of chloroplast DNA and ITS regions) revealed that is the sister group of other of s.l. Furthermore, is morphologically different from other based on existing data. We suggest keeping as an independent genus in Gesneriaceae.