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| Gastrodia keyiensis M.Khanal, D.Borah & Dev.Kumar, in Khanal, Borah, Sarkar, Gap, Rai et Kumar, 2026. |
Abstract
Gastrodia keyiensis M.Khanal, D.Borah & Dev.Kumar sp. nov. is described from Keyi Panyor District, Arunachal Pradesh, northeastern India. The new species is morphologically allied to G. putaoensis but differs in having a broadly obovate basal part of the labellum with 6–7 prominent longitudinally thickened structures, and a distinct, thick, strongly incurved, narrowly oblong-ligulate, yellow apical part that is minutely papillate, with the apex rounded to obtuse (vs. an elliptic basal part with 3–5 parallel thickened lines, and a narrower apical part densely covered with yellow hairs, with the apex obtuse and densely covered with red papillae). A detailed morphological description, diagnosis, photographic illustrations, notes on distribution, habitat, phenology, and conservation status, together with comparisons with morphologically allied species, are provided to facilitate its identification.
Monocots, Ghost orchid, Mycoheterotroph, New to Science, Orchid, Taxonomy
Gastrodia keyiensis M.Khanal, D.Borah & Dev.Kumar sp. nov.
MADHUSUDHAN KHANAL, DIPANKAR BORAH, SHUVADIP SARKAR, NEELAM GAP, SANTOSH KUMAR RAI and DEVENDRA KUMAR. 2026. Gastrodia keyiensis (Orchidaceae: Gastrodieae), A New holomycotrophic Species from Arunachal Pradesh, Eastern Himalaya, India. Phytotaxa. 773(3); 289-295. DOI: doi.org/10.11646/phytotaxa.773.3.7 [2026-09-09]
