AFRICAN

ORCHIDS

Microcoelia cornuta (Ridl.) Carlsward, Amer. J. Bot. 93: 779 (2006).
Homotypic Synonyms:
Gussonea cornuta (Rchb.f.) Ridl., J. Bot. 23: 310 (1885).
Heterotypic Synonyms:
Angraecum cornutum Rchb.f., Flora 68: 538 (1885).
Angraecum cyclochilum Schltr., Bot. Jahrb. Syst. 38: 160 (1906).
Rhaphidorhynchus cornutus (Rchb.f.) Finet, Bull. Soc. Bot. France 54(9): 34 (1907).
Gussonea cyclochila (Schltr.) Schltr., Beih. Bot. Centralbl. 33(2): 425 (1915).
Solenangis cornuta (Rchb.f.) Summerh., Bot. Mus. Leafl. 11: 160 (1943).
Solenangis cyclochila (Schltr.) R.Rice, Oasis 3: 4 (2006).
Description:
Roots 1.5-2 mm in diameter; stem more or less short or elongated, the size of the smallest roots. Inflorescences 7-15 cm long, peduncle approximately one-quarter the length of the total inflorescence; rachis 4-20 flowered, rachis straight; bracts small, obtuse (0.5 mm), equaling about one-eighth the length of the pedicel, which is 4-5 mm long; flowers white, small (flowers 2-3 mm long). Median sepal very concave, widely oval-subacute (1.2-1.3 x 1-1. l mm), hyaline and 1veined, lateral sepals larger (2 x 1.2 mm), very unequal literal, very enlarged-rounded on their front margin, acute and 1 veined. Petals oblong-lanceolate (1-2 x 0.5-1 .6 mm), slightly acute. Labellum orbicular (2 mm in diameter generally) or nearly, rounded or truncate basally, slightly emarginate apically, more or less crenate-denticulate and 5-7 veined, spur 3.5- 4mm. long, slightly curved in front, attenuate from the oriface to the apex which is narrow and obtuse. Column short (0.7-0.8 mm), rear margin of the clinandrium slightly angular-obtuse. Rostellum in 2 narrow laminas, obliquely pendent, 0.4 mm long. Anther (l mm wide) provided in front with a projecting (0.4 mm), angular-obtuse tongue; pollina subglobulous; cauda slightly enlarged toward the pollina; viscidium very small, flat and triangular.
Habitat:
Epiphyte of branches, humid forests from 0-300 m alt.; is flowering in September-December.
Cultivation:
As given for the genus.
Distribution:
Comoros, N. & W. Madagascar
References:
Angraecoid Orchids Stewart, Hermans, Campbell 2006; Flora Of Madagascar Perrier 1981; WCSP (2017). 'World Checklist of Selected Plant Families. 03.03-2017; http://apps.kew.org/wcsp/
Images:
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Habitat/In situ  Habitat/In situ  Habitat/In situ  Habitat/In situ  Habitat/In situ 
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Photograph© Etienne
Vennetier Image used
with kind permission.
 
Photograph© Etienne
Vennetier Image used
with kind permission.
 
Photograph© Etienne
Vennetier Image used
with kind permission.
 
Photograph© Etienne
Vennetier Image used
with kind permission.
 
Photograph© Etienne
Vennetier Image used
with kind permission.