Aerangis rostellaris (Rchb.f.) H.Perrier, in Fl. Madag., Orchid.(2): 116 (1941).
Homotypic Synonyms:
Angraecum rostellare Rchb.f., Flora 68: 380 (1885).
Heterotypic Synonyms:
Angraecum avicularium Rchb.f., Gard. Chron. 1887(1): 40 (1887).
Aerangis avicularia (Rchb.f.) Schltr., Beih. Bot. Centralbl. 36(2): 114 (1918).
Aerangis buchlohii Senghas, Orchidee (Hamburg) 20: 16 (1969).
Description:
Leaf ovate-oblong, margin minutely crispate, apex bilobed, 7-5 x 3-5 cm. Inflorescence 26 cm long, bearing 15 flowers, 1-3-1-5 cm apart. Sepals lanceolate and acuminate, 18-20 x 2-5-4 mm, the lateral sepals narrower than the dorsal sepal; petals oblanceolate, cuspidate, 14-15 x 3-4 mm. Lip spathulate or pandurate, cuspidate, the long narrow tip 6 mm long, 16-18 x 6 mm; spur 11 cm long, up to 2-5 mm wide at the mouth, gradually narrowing towards the middle and enlarging again towards the tip. Column 2-2-5 mm high; androcilnium with a somewhat frilly margin; rostellum elongated, up to 3,5 mm long, and with a narrow central groove into which the elongated viscidium fits; stipes very short; pollinia globose, large.
Habitat:
Found in the Comoros Islands and northern and south central Madagascar at elevations of 1000 to 1300 meters in humid evergreen forests.
Cultivation:
As given for the genus.
Distribution:
Comoros, N. Madagascar
References:
Angraecoid Orchids Stewart, Hermans, Campbell 2006; Orchids of Madagascar Hermans, Du Puy, Cribb and Bosser 2007; WCSP (2017). 'World Checklist of Selected Plant Families. 20.01-2017; http://apps.kew.org/wcsp/
Images:
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