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A new lithophilous species of Gesneriaceae, Petrocodon rubrostriatus, from the karst area of South Yunnan, China.

Authors :
Ke Tan
Di-Ya Chen
Xi-Qiang Song
Ming-Xun Ren
Source :
PhytoKeys. 2023, Issue 230, p289-299. 11p.
Publication Year :
2023

Abstract

A new lithophytic species of Gesneriaceae, Petrocodon rubrostriatus K.Tan, X.Q.Song & M.X.Ren, sp. nov. from Lvchun County, South Yunnan, China, is described and illustrated here. It closest resembles P. mollifolius (W.T.Wang) A.Weber & Mich.Möller, but the new species is differentiated from it by red to brownish-red stripes in the yellow corolla throat and 4.5 mm long bract lobes, a ca. 10 mm long style, and staminodes inserted at 2.5–3 mm from the corolla base. The species is preliminarily assessed as ‘Critically Endangered’ (CR) according to IUCN criteria, since currently only one single locality is known with a few subpopulations on a fragmented limestone cliff, with fewer than 300 individuals. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
13142011
Issue :
230
Database :
Academic Search Index
Journal :
PhytoKeys
Publication Type :
Academic Journal
Accession number :
171375325
Full Text :
https://doi.org/10.3897/phytokeys.230.106358