Disperis latigaleata H.Perrier, Notul. Syst. (Paris) 8: 36 (1939).
Descriptions:
Herbs 15-20 cm tall, thin, stem bearing near the flowers 2 opposite leaves. Leaves oval-lanceolate (17-45 x 9-20 mm), subacute, rounded basally. Inflorescence several flowered (1-3 flowered, generally), bracts herbaceous, green, lanceolate subacute and 1veined, semi-embracing basally, equaling a third to a half the length of the pedicel; flowers rose, of the same size as those of D. oppositifolia but wider. Median sepal very narrowly lanceolate (7 x 1 .5 mm), with a single visible vein; laterals free, oval (10 x 6 mm), very obtuse, attenuate-compressed basally, 3 veined, without an apparent pit basally, but with the veins in the lower internal margin joined to the limbus. Labellum 4 mm long, linear and joined basally to the column by 2.5 mm, free above and obscurely 3 veined and obtriangular apically: appendage trilobed, frontal: median lobe pendent, narrowly triangular (2 x 1 mm basally). Tomentose-pubescent above except for the apex which is sub spatulate and glabrous, glabrous and 3 veined below, lateral lobes pubescent on both surfaces, recurved on both margins, slightly thicker apically, and shorter than the median. Arms of the rostellum spatulate, 1.3 mm long. Pollina small, bearing a small number of granules (8-10); cauda l mm long: viscidiums flat, orbicular, wider (0.6 mm) than the spatule which ends the arms of the rostellum. Pedicel 10-12 mm long. Capsule (sessile) narrowly elliptical (14 x 4 mm), attenuate toward both ends.
Habitat:
Semi-terrestrial in very shady forests, between 700-2000 m alt.; is flowering in December-February.
Distribution:
SW. Madagascar
