Abstract
Two new species of Orchidaceae, Neottia minutiflora J. D. Ya and Gastrochilus alpinus J. D. Ya, are described and illustrated from Yunnan, China. Bulbophyllum bisetum Lindl. is recorded for the first time in the country. Neottia minutiflora is unique in its tiny flowers, rectangular undulate-margined labellum auricles, and linear-falcate lateral lobes longer than the broadly triangular mid-lobe. Gastrochilus alpinus differs by its bilobed leaf apices, 2–6-flowered racemes, glabrous erose-margined labella with two median ridges, and shortly bifid saccate-subconical hypochilia. All these species are derived from the Gaoligong Mountains. Specifically, Neottia minutiflora is distributed in Tengchong County; Bulbophyllum bisetum and Gastrochilus alpinus are native to Gongshan County.
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