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Issue: Vol. 435 No. 1: 4 March 2020
Type: Article
Published: 2020-03-04
DOI: 10.11646/phytotaxa.435.1.9
Page range: 69–75
Abstract views: 37
PDF downloaded: 3

Stellaria pentastyla (Caryophyllaceae), a new species from Yunnan (China)

National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, China
College of Life Sciences, Sichuan University, Chengdu 610065, China
National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, China
Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, China
Caryophyllaceae phylogenetic analysis Stellaria taxonomy Eudicots

Abstract

Stellaria pentastyla sp. nov. (Caryophyllaceae) is described and illustrated as a new species from Yunnan Province of China on the basis of both morphological and molecular data [nuclear ITS and two plastid regions (matK and trnL-F)]. The new species is similar to S. palustris and S. graminea from which differs by the number styles (5 vs. 3), the shorter leaves (10–13 mm vs. 20–45 mm and 5–50 mm, respectively). S. pentastyla is also similar to S. patens from which can be distinguished in having 5 styles (vs. 3 styles) and glabrous stem (vs. pubescent), and to S. lanipes from which differs from by styles (5 vs. 3), glabrous nodes (vs. densely white lanate on the nodes), and sessile leaves (vs. proximal leaves with very short petiolate).