Epiphytic monopodial herbs, with short or elongate leafy stems, without pseudobulbs
Leaves distichous, ligulate to oblanceolate, flat, usually unequally bilobed at apex
Inflorescences lateral, short or long racemes, rarely branched, mainly pendulous; flowers usually white
Sepals and petals ± lanceolate-oblong, spreading, free
Lip elliptic to lanceolate-oblong, with long spur
Gynostemium short and broad; anther operculate, anther cap sometimes beaked; pollinia 2, attached by single stipe to single enlarged viscidium; rostellum entire, elongated
Capsule cylindrical or ellipsoid, often much enlarged
x = 25 (aneuploids, high polyploidy)
Nomenclature:
Aerangis Rchb.f.
Reichenbach: 190 (1865)
Rolfe: 68 (1912) under Angraecum
Schelpe: 44 (1966)
Harrison: 47 (1972)
Stewart: 239 (1979)
Stewart et al.: 262 (1982)
Linder & Kurzweil: 427 (1999)
Distribution & Notes:
Global: Species ± 50, Africa and Mascarene Islands
Southern Africa: Species 3 (possibly 5), Mpumalanga, Swaziland, KwaZulu-Natal, and Eastern Cape
References:
HARRISON, E.R. 1972. Epiphytic orchids of southern Africa. Natal Branch of the Wildlife Society of Southern Africa
LINDER, H.P. & KURZWEIL, H. 1999. Orchids of southern Africa. A.A. Balkema, Rotterdam
REICHENBACH, H.G. 1865. Dr. Welwitsch's Orchideen aus Angola. Flora 48
ROLFE, R.A. 1912. Order CXXXI. Orchideae. Flora capensis 5,3
SCHELPE, E.A. 1966. An introduction to the South African Orchids. Purnell & Sons, Cape Town, Johannesburg
STEWART, J. 1979. A revision of the African species of Aerangis (Orchidaceae). Kew Bulletin 34
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