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| Gastrochilus linzhiensis M.K.Li, Y.Luo & Z.Xing, in Li, Yu, Ma, Chen, Deng, Liu, Luo et Xing, 2023. 林芝盆距兰 || taiwania.ntu.edu.tw/abstract/1941 |
Abstract
A new species Gastrochilus linzhiensis M.K.Li, Y.Luo & Z.Xing from Linzhi City, Xizang, China is described and illustrated here. It is morphologically similar to G. prionophyllus and G. distichus, but can be distinguished from them in having no awned leaf, smaller flowers, semicircular epichile, cushion with 2–3 round papillary projection, and conically elongated hypochile.
Keyword: Data Deficient, Gastrochilus distichus, Gastrochilus prionophyllus, section Microphyllae
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| Gastrochilus linzhiensis M.K.Li, Y.Luo & Z.Xing. A. plants and habitat; B–C. branches with inflorescence; D. inflorescence; E1–E4. flowers (E1–E2. front view; E3. side view; E4. upward view); F1–F2. sepals and petals; G1–G2. close-up of lips (G1. top view; G2. side view); G3–G5. front view of epichile; H. column and ovary; I1–I2. anther caps; J. pollinia; K. fruit. (Photos: A. by Ying-Peng Yu in Bomi; B-K. by Meng Kai Li). |
Gastrochilus linzhiensis M.K.Li, Y.Luo & Z.Xing, sp. nov.
Diagnosis: Gastrochilus linzhiensis is similar to G. prionophyllus H. Jiang, D.P. Ye & Q.Liu and G. distichus (Lindl.) O.Kuntze in having pendulous and branched stem with slightly twisted leaves, but differs from them by having longer stem, no awned leaf, more smaller flowers, the semicircular epichile, cushion with 2–3 round papillary projection, and conical hypochile.
Etymology: The specific epithet ‘linzhiensis’ refers to the type locality where the new species occurs, Linzhi City, Xizang, China.
Vernacular name: Lin Zhi Pen Ju Lan, 林芝盆距兰
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| . Morphological differences between Gastrochilus linzhiensis and its two closely related species. A1-A2. G. linzhiensis; B1- B2. G. prionophyllus; C1-C2. G. distichus. (Photos: A1-A2. by Meng-Kai Li; B1-B2, C2.by Qiang Liu; C1. by Ji-Dong Ya). |
Meng-Kai Li, Ying-Peng Yu, Peng-Yue Ma, Xue-Da Chen, Jian-Ping Deng, Qiang Liu, Yan Luo and Zhen Xing. 2023. Gastrochilus linzhiensis (Aeridinae, Vandeae, Epidendroideae, Orchidaceae), A New Species from Xizang, China. Taiwnaia.68(3); 314-317. taiwania.ntu.edu.tw/abstract/1941
