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Issue: Vol. 316 No. 2: 4 August 2017
Type: Article
Published: 2017-08-04
DOI: 10.11646/phytotaxa.316.2.8
Page range: 189–194
Abstract views: 215
PDF downloaded: 1

Piper magen (Piperaceae), a new species from Yunnan, China

Key Laboratory of Economic Plants and Biotechnology, and Yunnan Key Laboratory for Wild Plant Resource, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China
Key Laboratory of Economic Plants and Biotechnology, and Yunnan Key Laboratory for Wild Plant Resource, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China
Key Laboratory of Economic Plants and Biotechnology, and Yunnan Key Laboratory for Wild Plant Resource, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
Key Laboratory of Economic Plants and Biotechnology, and Yunnan Key Laboratory for Wild Plant Resource, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Piper IUCN Red List Yunnan Province New species

Abstract

Piper magen (Piperaceae) sp. nov. from Yunnan Province, China, is here described and illustrated. This species is similar to P. nudibaccatum, but the former can be distinguished by the following combination of characteristics: woody climbers with well-developed longitudinal ridges, these with obtuse, corky wings; leaves dimorph, mature leaves green at adult stage, elliptic or ovate with oblique leaf base, veins 7–9, pinnate, but leaves cordate, heterochromous at juvenile stage, with veins zone greyish white on the adaxial surface, veins 5–7, palmate; male spikes with sterile apical region ca. 1–3 mm long, glabrous, pale green; stamens 3; filaments very short and flat (with stereoscope); bracts suborbicular with dense, brownish red dots visible on adaxial surface, with dense cilium on abaxial surfaces (with stereoscope); stigmas 3 or 4, linear, reflexed, sparsely velutinous.