Research Paper

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

Published on: 06 April 2021

Page: 135 - 140

DOI: 10.6165/tai.2021.66.135

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2021 vol.66 no.2
pp.135-140

Abstract

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.

Keyword: limestone flora, new taxon, Petrocodon ainsliifolius, Petrocodon integrifolius, Petrocodon ionophyllus, taxonomy

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