J Syst Evol ›› 2007, Vol. 45 ›› Issue (3): 296-300.DOI: 10.1360/aps050184

• Research Articles • Previous Articles     Next Articles

Roscoea cangshanensis M. H. Luo, X. F. Gao & H. H. Lin, a new species of the Zingiberaceae from Yunnan, China

1 2LUO Ming-Hua, 3GAO Xin-Fen, 2ZHU Zheng-Yin, 1LIN Hong-Hui*   

  1. 1(Key Laboratory of Bio-resources and Eco-environment, Ministry of Education,
    College of Life Sciences, Sichuan University, Chengdu 610064, China)

    2(Sichuan School of Chinese Materia Medica, Emei, Sichuan 614201, China)

    3(Chengdu Institute of Biology, the Chinese Academy of Sciences, Chengdu 610041, China)
    honghuilin@vip.sina.com
  • Received:2005-12-14 Published:2007-05-18

Abstract: Roscoea cangshanensis M. H. Luo, X. F. Gao & H. H. Lin, a new species of the Zingiberaceae from Yunnan, China, is described and illustrated. The new species is related to R. forrestii Cowley in habit, but differs in having 2-lobed labellum, each lobe 2-lobulate, base narrowed to a stalk with white lines, and narrower leaf blade, (2–)7–24×1.5–2.5 cm, with base narrow to petiole-like. The new species is also similar to R. debilis Gagnep. in having leaf base narrow to petiole-like, labellum obovate-cuneate, 2.5–3.5×2.5–3.0 cm, with white lines at throat, but differs in having bracts non-tubular, shorter, 5–15 mm long, concealed in leaf sheaths, corolla tubes longer, 10–12.5 cm long, labellum 2-lobed with each lobe further 2-lobulate.

Key words: Roscoea, Roscoea cangshanensis M. H. Luo, X. F. Gao & H. H. Lin, Zingiberaceae, new species, Yunnan, China