No.17  LI-HUA YANG, BO PAN & MING KANG：

Primulina curvituba sp. nov. (Gesneriaceae) from a limestone area in Guangxi, China

Nordic Journal of Botany  35(5): 578–581.

ABSTRACT

Primulina curvituba B. Pan, L.H. Yang & M. Kang, a new species of Primulina (Gesneriaceae) from Guangxi, China, is described and illustrated. This new species is mainly diagnosed by its strongly curved corolla tube, which is a rare character in Primulina. The morphological relationship and differences between this species and its related congeners are discussed. The conservation status of P. curvituba is assessed as ‘ Critically Endangered ’ (CR) according to IUCN.

Figure 1.  Primulina curvituba sp. nov. (A) opened corolla, (B) habit, (C) flower in front view, (D) pistil and stigma, (E) flower in side view, (F) anthers in front view, (G) anthers in side view. Drawn by Yun-Xiao Liu based on cultivated individual collected from the type locality.

Figure 2. Primulina curvituba sp. nov. (A) habitat, (B) habit, (C) adaxial leaf surface, (D) abaxial leaf surface, (E) flower in side view, (F) flower in front view, (G) opened corolla, showing stamens and staminodes, (H) flowering plant cultivated in SCBG, (I) flower bud, (J) fertile stamens, (K) pistil, (L) calyx lobes, (M) capsule. Photo by Li-Hua Yang.