Tridactyle verrucosa P.J.Cribb, Kew Bull. 40: 415 (1985).
Stems 10-25 cm tall, erect, sometimes branched at the base, covered with old leaf bases with transverse wrinkles; roots arising at base of stem, 3-5 mm in diameter, markedly verrucose. Leaves usually six to seven, borne near apex of stem, to 7 x 1 cm, stiff, strap-shaped, unequally and obtusely bilobed at the apex. Inflorescences arising on stem below leaves, 2-3 cm long, densely 4- to 6-flowered. Flowers straw yellow, 8 mm in diameter. Sepals 4-5 x 2 mm, lanceolate, acuminate; petals slightly shorter and narrower. Lip 4-5.5 mm long, trilobed at about halfway; midlobe 2 mm long, narrowly triangular; side lobes spreading, 3 mm long, entire or with threadlike processes at roe apex. Spur 8-12 mm long, parallel to the ovary, slightly swollen at roe apex. Column 1 mm long; anther cap orange-brown.
Lithophytic on exposed rocks in montane grassland or at the edge of forest, occasionally epiphytic on relict trees in montane areas, 1500-2200 m.
This species is much more compact in its growth habit than many in the genus. It does well potted in a coarse mix, at intermediate temperatures, in fairly good light.
S. Tanzania to Malawi
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; accessed 21.03.2017
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