AFRICAN

ORCHIDS

Tylostigma foliosum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 33: 21 (1923).
Description:
20-40cm. tall herbs; stem upright, sheathed basally by the limbus-less sheaths, bearing 4-6 lanceolate-linear leaves (generally 18cm. x 8-11mm.). above, shortening gradually and producing the bracts. Rachis densely many flowered, narrowly cylindrical (nearly 13 x 1.4cm ); bracts nanowly lanceolate, greenish. Sepals widely oblong, 3mm. long, the median 1 veined, the laterals oblique and 3 veined. Petals slightly shorter than the sepals, oblique, oval-obtuse, 1 veined, slightly enlarged on their front basal margin. Labellum widely oval-obtuse (2.5 x 2mm.), truncate-rounded basally, bearing a sub-square speculum basally, obviously slightly raised-marginate, and slightly rugose in the apical half. Column very short. Staminodes rounded and irregularly crenulate. Ovary 7mm. long.
Habitat:
Peat-bogs, from 2000m. alt.; flowering: January.
Distribution:
SC. Madagascar

Images:
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Botanical Drawing / Herbarium
tylostigma foliosum
Photograph copyright Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission.