Eulophia humbertii (H.Perrier) Butzin, Willdenowia 7: 588 (1975).
Homotypic Names:

Lissochilus humbertii H.Perrier, Notul. Syst. (Paris) 8: 40 (1939).
Oeceoclades humbertii (H.Perrier) Bosser & Morat, Adansonia, sér. 3, 23: 10 (2001).
Plants 40-50 cm tall, leaves not developed at time of flowering. Inflorescence thin; peduncle shorter or much longer than the cluster, bearing 3-4 basal, scariaceous vaginals; grey, loose and acute apically; cluster loosely 10-20 flowered, distant or ordinarily twice their total length apart; bracts narrow (6-7 x 1-1.2 mm basally), acute, 1 veined, equal to about one-third the length of the pedicel, green when live, blackish when dried with the veins not visible. Median sepal lanceolate (10 x 3 mm), slightly attenuate at both ends, acute apically, 3 veined; lateral sepals similar, but slightly sickle shaped and provided with a dorsal costule. Petals oval-lanceolate, shorter than the sepals and wider (8 x 4 mm), slightly acuminate acute apically, 3 veined, the median simple, the laterals branched. Labellum wider (10-12 mm) and long (8-9 mm), 4 lobed; basal lobes rounded apically, with 3 much branched veins; median lobe 3 veined, without calluses or bumps, with the spur oriface flanked by 2 connical calluses, smooth and l mm tall; spur saccate (2 x 1.5 mm). Column 4 mm tall, wide, obviously recurved, with a short foot, provided behind the clinandrium with a small lobe (supports the anther) obtuse and projecting. Anther 1.5 mm wide, provided behind with a small, rounded gibbousite. Pedicel 14-20 mm long.
Large xerophytes, from 400-600 m alt.,
Flowing in December-January.
SW. Madagascar
Flora of Madagascar Perrier 1939/81; Orchids of Madagascar Hermans, Du Puy, Cribb & Bosser 2007; Field Guide to the Orchids of Madagascar Cribb & Hermans 2009; Expansion of the orchid genus Eulophia (Eulophiinae; Epidendroideae) to include Acrolophia, Cymbidiella, Eulophiella, Geodorum, Oeceoclades and Paralophia by Mark W. Chase, André Schuiteman & Pankaj Kumar. Phytotaxa 491 (1); POWO (2022). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; Retrieved 26 November 2022."
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