AFRICAN

ORCHIDS

Angraecopsis thomensis Stévart & P.J.Cribb, Kew Bull. 59: 77 (2004).
Description:
An epiphytic herb with short spreading stems 1.7 - 2.3 cm long, 3 - 4-leaved. Leaves subimbricate, suberect; blade 2.5 - 6 × 0.8 - 1 cm, falcate, narrowly elliptic, apex unequally subacutely bilobed; sheath 4.2 × 3.2 mm; petiole to 4 mm, twisted. Inflourescences 6.4 - 8.8 cm long, 1-2, axillary, racemose, basal, ascending, sparsely 6 - 8-flowered; peduncle 4 - 5.4 cm long, slender; rachis 2.7 - 3.6 cm long; bracts 1 - 1.5 mm long, sheathing, acute. Flowers greenish white, glabrous; pedicel and ovary 5 - 5.5 mm high. Dorsal sepal 2.8 × 1.2 mm, ovate to narrowly triangular, apiculate. Lateral sepals 3.2 × 1.2 mm, obliquely narrowly elliptic, somewhat spathulate, acute, adnate at the base to the petals. Petals 2.8 × 1.6 mm, slightly obliquely triangular, acute. Lip 2.4 × 1.4 mm, trilobed at the base; claw 0.4 × 0.7 mm; side lobe 0.5 × 0.2 mm, basal, triangular; mid-lobe linear, 1.8 × 0.7 mm, apex adaxially apiculate; spur 5 - 6 mm long, slightly curved, compressed, swollen at apex. Column 1 mm long; anther cap 0.8 × 0.6 mm, obtriangular; rostellum trilobed when pollinaria removed, mid-lobe narrowly oblong, 0.6 - 0.8 mm long, apex reflexed; side lobes linear, very slender; stipes 2, linear, 0.3 mm long; viscidium 2, narrowly elliptic, 0.3 mm long; pollinia globose.
Habitat:
Epiphyte in old secondary forest; 200 - 500 m.
Cultivation:
As given for the genus.
Distribution:
São Tomé.
References:
WCSP (2017). 'World Checklist of Selected Plant Families. 14.02-2017; http://apps.kew.org/wcsp/
Images:
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