Primulina guarouba, a new endemic cave-dwelling species of Gesneriaceae
from northern Guangxi, China
Abstract
Primulina guarouba, a new species from the limestone area of northern
Guangxi, China, is described and illustrated. According to the maximum
likelihood (ML) and Bayesian inference (BI) analysis, it nests in a
strongly supported clade (BP = 99%) that includes P. cordifolia, P.
repanda and P. huangii. Of these, P. guarouba is similar to the P.
cordifolia in morphology, but it is easily distinguished from the latter
by some of the distinct characters in leaf blade, peduncles, bracts,
calyx, corolla, pistil.