AFRICAN

ORCHIDS

Rhipidoglossum polyanthum (Kraenzl.) Szlach. & Olszewski, in Fl. Cameroun 36: 864 (2001).
Homotypic Synonyms:
Mystacidium polyanthum Kraenzl., Bot. Jahrb. Syst. 51: 394 (1914).
Sarcorhynchus polyanthus (Kraenzl.) Schltr., Beih. Bot. Centralbl. 36(2): 105 (1918).
Diaphananthe polyantha (Kraenzl.) F.N.Rasm., Norweg. J. Bot. 21: 229 (1974).
Heterotypic Synonyms:
Sarcorhynchus saccolabioides Schltr., Beih. Bot. Centralbl. 36(2): 105 (1918).
Description:
Plant erect with short stems, 5-16 cm long, 10-20 mm in diameter, leafy near the apex. Leaves 3 or more, twisted near the base to lie in one plane, oblong-linear or linear-lanceolate, unequally and acutely bilobed at the apex, 1.8-8 cm long, 3-13 mm wide. Inflorescences upright, arising below the leaves, 4-flowered or more, 2-20 cm long; bracts transversely elliptic, 1-2 mm long; pedicel with ovary 2-3 mm long. Flowers greenish white, small; dorsal sepal oblong or oblong-elliptic, obtuse or rounded, 1.8-3.8 mm long, 1-1.6 mm wide; lateral sepals obliquely oblong-oval or oval-elliptic, obtuse, 2.2-4 mm long, 1—1.8 mm wide; lip pan-duriform, concave at the base, 3-lobed at the apex, thickened along the mid-line, 1.8-3.8 mm long, 1.6-2.5 mm wide; spur very small, sac-like, 1-2 mm long, 1 mm wide.
Habitat:
Epiphyte in montane forests, usually about 10 m above the ground; 1500-2150 m; flowering July to November.
Cultivation:
As given for the genus.
Distribution:
Bioko, SW. Cameroon
References:
WCSP (2017). 'World Checklist of Selected Plant Families. 17.03.2017; http://apps.kew.org/wcsp/
Images:
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