AFRICAN

ORCHIDS

Oeceoclades humbertii (H.Perrier) Bosser & Morat, Adansonia, III, 23: 10 (2001).
Homotypic Synonyms:
Lissochilus humbertii H.Perrier, Notul. Syst. (Paris) 8: 40 (1939).
Eulophia humbertii (H.Perrier) Butzin, Willdenowia 7: 588 (1975).
Description:
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.
Habitat:
Large xerophytes, from 400-600 m alt., flowering in December-January.
Distribution:
SW. Madagascar