Primulina alba, a new cave-dwelling species of Gesneriaceae from a Limestone Area in Tiandeng County, Guangxi, China

摘要

Primulina alba R.F.Li & B.Pan, a new species of Gesneriaceae from the limestone area of Guangxi, Southwest China, is described and illustrated. This new species is morphologically similar to P. cerina F.Wen, Yi Huang & Chou. It can be easily distinguished from the latter by several characteristics, such as the size of leaf blades, the indumentum, size of the corolla, the position of stamens, etc. The conservation status of P. alba can be considered Vulnerable [VU D1] according to the Guidelines for Using the IUCN Red List Categories and Criteria (IUCN, 2022).

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