Tylostigma hildebrandtii (Ridl.) Schltr., Repert. Spec. Nov. Regni Veg. Beih. 33: 22 (1924).
Homotypic Synonyms:
Habenaria hildebrandtii Ridl., J. Linn. Soc., Bot. 21: 503 (1885).
Very thin herbs, 20-40cm. tall, black when dried; tubers small, oval-cylindrical. Leaves graminiform, linear-lanceolate, acuminate, few in number, below the base of the stem. Rachis thin. 5-6cm. long, compact, with numerous yellowish flowers; bracts linear-acuminate, equal to the ovary or slightly longer. Sepals and petals oval-obtuse, subequal, the laterals carenate and the petals 3 veined. Labellum oval-lanceolate, obtuse, excavated basally, thickened apically. Column very short, thick.
Marshes, from 1500-2000m. alt.; flowering: January.
C. Madagascar