Rhipidoglossum obanense (Rendle) Summerh. in J.Hutchinson & J.M.Dalziel, Fl. W. Trop. Afr. 2: 449 (1936).
Angraecum obanense Rendle, Cat. Pl. Oban: 104 (1913).
Diaphananthe obanensis (Rendle) Summerh., Kew Bull. 14: 142 (1960).
Plant erect or semi-pendent, with stems to 20 cm long. Leaves spaced out along the apical part of the stem, oblong-lanceolate, falcate, unequally and obtusely bilobed at the apex, 6-11 cm long, 1.5-2.5 cm wide. Inflorescences bearing many flowers spaced very close together, 2-4 cm long; bracts transversely elliptic, 1 mm long; pedicel with ovary 5 mm long. Flowers greenish white; sepals oblong-oval, obtuse, 2-2.5 mm long, 1.5 mm wide; petals round or ovate, 2.25 mm long, 2 mm wide; lip transversely elliptic, retuse, lacking a callus, 1.5 mm long, 3 mm wide; spur inflated in the apical part, 2-3 mm long.
Epiphyte in humid forests.
As given for the genus, warm to cool growing epiphyte.
This species seems to be very close to Rhipidoglossum densiflorum and numerous intermediate forms have been encountered and noted, particularly by William Sanford in Flore du Cameroun (2001).
S. Nigeria to Cameroon
Angraecoid Orchids Stewart, Hermans and Campbell 2006; WCSP (2017). 'World Checklist of Selected Plant Families. 17.03.2017; http://apps.kew.org/wcsp/
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