Petrocodon (Gesneriaceae) in the Limestone Karsts of Guangxi, China: Three New Species and a New Combination Based on Morphological and Molecular Evidence

Autor:	Kuo-Fang Chung, Wang-Hui Wu, Qiang Zhang, Yan Liu, Wei-Bin Xu, Tao Meng
Rok vydání:	2014
Předmět:	Gynoecium geography geography.geographical_feature_category Old World Phylogenetic tree biology Plant Science Petrocodon biology.organism_classification Karst Gesneriaceae Inflorescence Primulina Botany Genetics Ecology Evolution Behavior and Systematics
Zdroj:	Systematic Botany. 39:965-974
ISSN:	1548-2324 0363-6445
DOI:	10.1600/036364414x681437
Popis:	Based on morphological and molecular data, three new species of the Old World Didymocarpoid Gesneriaceae, Petrocodon laxicymosus, P. longgangensis, and P. pseudocoriaceifolius, are described and illustrated from Guangxi, China. The three new species are most similar to P. coriaceifolius, differing by their texture, size, and shape of leaves, size and pubescence of inflorescence and corolla, anther shape, and pistil length. Additionally, Primulina guangxiensis, one of two species included in Primulina before its recent recircumscription, was unexpectedly found to be nested within Petrocodon in our ongoing phylogenetic analyses, prompting us to make the new combination Petrocodon guangxiensis. The four species of Petrocodon treated here are all rare, known only from a single or a few localities of limestone karsts in Guangxi.
Databáze:	OpenAIRE
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