Tridactyle oblongifolia Summerh., Kew Bull. 3: 286 (1948).
Plant small with short, few-branched stems to 8 cm long, with verrucose roots. Leaves narrowly oblong or ligulate, leathery, unequally and obtusely bilobed at the apex, twisted at the base so that they lie in one plane, 2-12 cm long, 7-17 mm wide. Inflorescences very short, to 4 mm long, 2- or 3-flowered. Flowers greenish white, turning yellow with age; dorsal sepal oblong-ovate, acute, 4.8-5.2 mm long, 1.8-2 mm wide; lateral sepals similar but oblique, 4-4.4 mm long, 2-2.5 mm wide; petals lanceolate, acuminate, 4.4-5 mm long, 1-1.2 mm wide; lip entire, lanceolate, acute, with a tooth on each side at the mouth of the spur, 3.7-4.5 mm long, 1-1.3 mm wide; spur filiform, geniculate in basal half, slightly dilated towards the apex, 13-14.5 mm long.
Epiphyte in riverine forest; 900-1300 m; flowering in November and December.
As given for the genus.
W. Trop. Africa to Uganda
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 21.03.2017
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