Rhipidoglossum clavatum (P.J.Cribb) Farminhão & Stévart, Phytotaxa 349: 252 (2018).
Margelliantha clavata P.J.Cribb, Kew Bull. 34: 331 (1979).
Angraecopsis clavata (P.J.Cribb) R.Rice, Prelim. Checklist & Survey Subtrib. Aerangidinae (Orchidac.): 21 (2005).
Plants dwarf, stems pendent to suberect, up to 5 cm long, 3 mm in diameter. Leaves several in 2 rows, narrowly oblong, slightly falcate, twisted at the base, unequally and obtusely bilobed at the apex, 4-5 cm long, 8-10 mm wide. Inflorescences short, to 2.5 cm long, 2- to 5-flowered; peduncle wiry, 5 mm long; bracts ovate, 1-1.5 mm long; pedicel with ovary slender, 7 mm long. Flowers pale yellow-green; dorsal sepal oblong-elliptic, rounded, 3.5 mm long, 1.5 mm wide; lateral sepals elliptic-obovate, 3-4 mm long, 1.5 mm wide; petals elliptic or almost round, obtuse, 2.5-3 mm long, 2.5 mm wide; lip broadly elliptic, 4 mm long, 5.5-6 mm wide; spur straight, inflated towards the tip, 6-7 mm long, 1-1.2 mm in diameter.
Epiphyte on twigs and small branches in montane forest; 1800-1950 m; flowering in March.
As given for the genus, cool to cold growing epiphyte.
Tanzania (W. Usambara Mts.)
Flora of Tropical East Africa Part 3 Cribb 1989; Angraecoid Orchids Stewart, Hermans, Campbell 2006; WCSP (2017). 'World Checklist of Selected Plant Families. 29.03-2020; http://apps.kew.org/wcsp/
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