No.12Zi-Bing Xin , Wei-Chuen Chou , Stephen Maciejewsk,Long-Fei Fu & Fang Wen

Primulina papillosa (Gesneriaceae), a new speciesfrom limestone areas of Guangxi, China

PhytoKeys 177: 55–61 (2021)

ABSTRACT

Primulina papillosa Z.B. Xin, W.C. Chou & F. Wen, a new species from limestone areas of Guangxi, China, is described and illustrated here. It morphologically resembles P. linearifolia (W.T. Wang) Yin Z. Wang and P. pseudolinearifolia W.B. Xu & K.F. Chung, but can be easily distinguished by some combined characters, especially its leaf blades densely papillose-hispid. We found only one population at the type locality with no more than 200 individuals, so that this new species is provisionally assessed as Critically Endangered (CR) using IUCN Criteria.

Original article link:                  

 https://phytokeys.pensoft.net/article/63878/download/pdf/541646

Figure 1. Primulina papillosa A, B habitat C habit D front view of the corolla E lateral view of the corolla F top view of the corolla G adaxial and abaxial surface of leaf blades H papillose-hispid hairs on leafblade surface I stamens J pistil, calyx and opened corolla with stamens and staminodes. (A, B photos byC. Chou, C–J photos by F. Wen; arranged by Z.B. Xin).

Figure 2. Comparison of three species of Primulina A, B P. linearifolia C, D P. pseudolinearifoliaE, F P. papillosa. (photos by F. Wen; arranged by Z.B. Xin).