Roscoea cangshanensis M. H. Luo,X. F. Gao & H. H. Lin,a new species of the Zingiberaceae from Yunnan,China |
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| Authors: | LUO Ming‐Hua GAO Xin‐Fen ZHU Zheng‐Yin LIN Hong‐Hui |
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| Institution: | 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 |
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| 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. |
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| Keywords: | Roscoea Roscoea cangshanensis M H Luo X F Gao & H H Lin Zingiberaceae new species Yunnan China |
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