Aeranthes nidus Schltr., Repert. Spec. Nov. Regni Veg. Beih. 33: 281 (1925).
Aeranthes pseudonida H.Perrier, Notul. Syst. (Paris) 7: 47 (1938).
Plants caulescent 20-30 cm tall, often forming dense clumps, stem covered by the finely veined sheaths and bearing in the apical portion 7-10 graminiform leaves, lanceolate-linear (13-18 cm x 7- 10 mm, attenuate toward both ends. slightly rigid and .slightly curved. Inflorescences arranged as in Angraecum multilforum Thou., that is to say grouped in a lateral cluster arising from a primary peduncle, short (4-10 mm), thick obliquely descending, inserted at the base of the lower sheaths, persisting and emitting secondary, pendent inflorescences for several years; secondary inflorescences upright, single flowered, with the peduncle 1.5-4 cm long, bearing 3-5 sheaths which are shorter than the internodes: bracts 3 mm long; flowers whitish and small. Median sepal lanceolate (17 x 5 mm) and longly acuminate; lateral sepals narrower than the median, with the front margins dilate marginally in front. Petals shorter (14 x 5 mm) than the sepals, longly acuminate above the base, which is obovate-suborbicular. Labellum with the lamina sub truncate, auriculate basally, very longly (5 mm) acuminate apically, provided basally with 3 verrucose keels; spur cylindrical, 9 mm long; foot 2 mm long. Anther wide (1.2 mm), pollina whitish, sub spherical bandeletts twisted. Column 2.5 mm tall, auricles short, deltoid and subacute. Pedicel 7 mm long generally.
Epiphytes of trunks; in mossy forests, from 100-1400 m alt.; flowering in February.
As given for the genus.
Flora Of Madagascar Perrier 1938/85 as Aeranthes pseudonida; Angraecoid Orchids Stewart, Hermans and Campbell 2006 Orchids of Madagascar Hermans 2007; Field Guide to the Orchids of Madagascar Cribb & Herman 2009; WCSP (2017). 'World Checklist of Selected Plant Families. 21.01-2017; http://apps.kew.org/wcsp/
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