Petrocodon albinervius, a new species of Gesneriaceae from limestone areas in southwestern Guangxi, China

Dong-Xin NONG ； Bao-You HUANG ； Shi-Yue NONG ； Yu-Song HUANG

《TAIWANIA》 66卷2期 (2021/06) Pp. 135-140

https://doi.org/10.6165/tai.2021.66.135

摘要

Petrocodon albinervius D.X. Nong & Y.S. Huang (Gesneriaceae) is described and illustrated as a species new to science occurring in the limestone area of southwestern Guangxi, China. It shows overall most similarity with P. ionophyllus F. Wen, S. Li & B. Pan, P. integrifolius (D. Fang & L. Zeng) A. Weber & Mich. Möller and P. ainsliifolius W.H. Chen & Y.M. Shui in leaf shape, but differs in several characters such as the leaf blade indumentum, leaf veins coloration, the size and shape of bracts, the number of cymes per plant and flowers per cyme, and the shape of the stigma. Besides a diagnosis and detailed description, we also provide ecological information, photographic images, a table and taxonomic notes to distinguish several other morphologically similar Petrocodon species and proposed conservation status for this species.

關鍵字

limestone flora ； new taxon ； Petrocodon ainsliifolius ； Petrocodon integrifolius ； Petrocodon ionophyllus ； taxonomy

參考文獻

Xin, Z.-B., L.-F. Fu, Z.-J. Huang, S. Li, S. Maciejewski, F. Wen and S.-B. Zhou. 2020. Petrocodon chishuiensis (Gesneriaceae), a new species endemic to Guizhou, China. Taiwania 65(2): 181–186.

Adhikari, B. and M. Möller. 2020. Didymocarpus nepalensis (Gesneriaceae), a new species from eastern Nepal. Rheedea 30(1): 128–134.

Cardoso, J.C.F., M.L. Viana, R. Matias, M.T. Furtado, A.P. de Souza Caetano, H. Consolaro and V.L.G. de Brito. 2018. Towards a unified terminology for angiosperm reproductive systems. Acta Bot. Bras. 32(3): 329–348.

Chen, W.-H., M. Möller, Y.-M. Shui, H. Wang, J.-B. Yang and G.-Y. Li. 2014. Three new species of Petrocodon (Gesneriaceae), endemic to the limestone areas of southwest China, and preliminary insights into the diversification patterns of the genus. Syst. Bot. 39(1): 316–330.

Fan, Z.-W., L. Cai, J.-W. Yang, S.-H. Tang and F. Wen. 2020. Petrocodon luteoflorus (Gesneriaceae), a new species from karst region in Guizhou, China. PhytoKeys 157: 167–173