Tridactyle phaeocephala Summerh., Kew Bull. 3: 292 (1948).
Plant with erect or pendent stems 9-30 cm long, and smooth roots. Leaves suberect or spreading, linear, unequally bilobed at the apex, with rounded or obtuse lobes, glossy, bright green, 3—8(—14) cm long, 4-5 mm wide. Inflorescences 1-4 cm long, 3- to 7-flowered. Flowers pale green with brown anther cap; dorsal sepal oblong-elliptic, acute or obtuse, 4.8-6 mm long, 2-2.4 mm wide; lateral sepals obliquely ovate, acute or obtuse, 5 mm long, 2.4-3 mm wide; petals oblong or lanceolate, acuminate, 4.5-5.7 mm long, 1.7-1.8 mm wide; lip auriculate at the base, 3-lobed in the middle, side lobes spreading, linear, 2- to 6-lacerate at the apex, mid-lobe slightly shorter than side lobes, linear-tapering, in total 3.6-5.8 mm long, 7 mm wide; spur straight, inflated at the apex, 8-9 mm long.
Epiphyte in montane and dwarf montane forest; 2200-2400 m; flowering in January and March.
As given for the genus.
This species seems close to Tridactyle stipulata but is distinguished by its narrower leaves, differently coloured flowers, and fimbriate side lobes of the lip.
E. Tanzania
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; accessed 21.03.2017
Click on each image to see a larger version.