Primulina aureipurpurea (Gesneriaceae), a new species from Guangxi Zhuang Autonomous Region, China

<i>Primulinaaureipurpurea</i>, endemic to the limestone area in Dahua County, Guangxi Zhuang Autonomous Region, China, is described and illustrated here. This species is distinguished from <i>P.albicalyx</i> by leaves sessile or with indistinct short petioles (<i>vs.</i> distinctly petiolate, 21-42 mm long in <i>P.albicalyx</i>, the following comparisons are in the same order) and blades oblanceolate, narrowly obovate to obovate (<i>vs.</i> ovate to broadly ovate); bracts smaller, lanceolate (3-4× ca. 1 mm) (<i>vs.</i> ovate to narrowly ovate, 18-25 × 9-14 mm); filaments glabrous and ca. 1.5 mm long (<i>vs.</i> sparely glandular pubescent and 2-2.5 mm long) and pistil sparsely eglandular-puberulent (<i>vs.</i> densely glandular-pubescent). According to the IUCN Red List criteria, the currently known population of this species is provisionally assessed as "Vulnerable, VU D2."