New distribution records of two bamboo species in Yunnan, China with description of the inflorescence for Melocalamus yunnanensis (Poaceae, Bambusoideae)

By

Zhang, Yuxiao
Ye, Xiaying
Yang, Hongmei
Zhang, Xianzhi
Wang, Pingyuan
Li, De-Zhu

Type

Article

Date of Publication

2016

Original Publication

PhytoKeys

Volume

62

Pages

41-56

Subjects

Ampelocalamus actinotrichus , biogeographic implications , Inflorescence , molecular discrimination , Neomicrocalamus prainii

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.62.7276

 

Abstract

Ampelocalamus actinotrichus (Merrill & Chun) S. L. Chen, T. H. Wen & G. Y. Sheng and Neomicrocalamus prainii (Gamble) P. C. Keng are reported with new distribution records in southern and southeastern Yunnan, China, respectively. Ampelocalamus actinotrichus was previously recorded to be endemic to Hainan, China, and Neomicrocalamus prainii to be distributed in southern Tibet and western Yunnan in China, northeastern India, and Burma. The identities of individuals collected in southern and southeastern Yunnan of these two species are confirmed by molecular evidence. The new distribution record of Ampelocalamus actinotrichus provides a case at the species level for confirming floristic affinities of southern Yunnan and Hainan Island in south China. The disjunct distribution of Neomicrocalamus prainii in Yunnan is concordant with the ecogeographical diagonal line from northwestern Yunnan to southeastern Yunnan and this may imply a tropical origin of this species. In addition, the inflorescence of Melocalamus yunnanensis (T. H. Wen) T. P. Yi is described.