Biodiv Sci ›› 2011, Vol. 19 ›› Issue (1): 120-123.DOI: 10.3724/SP.J.1003.2011.04238

• Special Issue • Previous Articles    

Biodiversity of orchids in remnant native forests in Nujiang Valley, Yun-nan Province, China

Xiaohua Jin*, Xiaoguo Xiang, Bin Chen   

  1. Institute of Botany, Chinese Academy of Sciences, Beijing 100093
  • Received:2010-09-27 Revised:2010-11-10 Online:2011-01-20 Published:2011-04-01
  • Contact: Xiaohua Jin

Abstract: The biodiversity of low elevation portions of Nujiang Valley has largely been ignored. Here, we illustrate the biodiversity richness of this region using the orchid flora as an example. We investi-gated orchid species diversity in remnant forests at four sites below 1,600 m elevation along the Nujiang River. In total, at least 60 species in 33 genera were recorded at these four sites, including one species (Eria sp.) that is either undescribed or new to the Chinese flora, two locally endemic species (Trias verru-cosa and Liparis rockii), and seven species not previously recorded in this region, i.e. Cypripedium sp., Gas-trochilus calceolaris, Ornitochilus difformis, Taeniophyllum glandulosum, Bulbophyllum spathula-tum, Tropidia curculigoides, and Epipactis royleana. Major threats to these orchids include habitat fragmentation and loss. Our results highlight the urgent need for field surveys of this region’s biodiver-sity. We present strategies to conserve biodiversity in this region.