AFRICAN

ORCHIDS

Acrolophia micrantha (Lindl.) Pfitzer, Entwurf. Anordn. Orch.: 60 (1887).
Homotypic Synonyms:
Eulophia micrantha Lindl., Gen. Sp. Orchid. Pl.: 184 (1833).
Graphorkis micrantha (Lindl.) Kuntze, Revis. Gen. Pl. 2: 662 (1891).
Heterotypic Synonyms:
Acrolophia fimbriata Schltr., Bot. Jahrb. Syst. 26: 340 (1899).
Description:
An erect caulescent branched glabrous robust herb, 70 cm. high; stem leafy, 28 cm. long; leaves erect-spreading equitant ensiform acute complicate serrulate on the margin and carina, rigid, 15-25 cm. long; panicle terminal, the peduncle and branches clothed with lanceolate submembranous sheaths, 7-10 cm. long ; bracts lanceolate or ovate-lanceolate, a little shorter than, or equal to, the pedicellate ovaries in length; sepals ovate, rather obtuse, minutely pellucid-punctate, 0,5 cm. long ; petals obliquely ovate, rather obtuse, 0,4 cm. long; lip spoon-shaped, oblong in outline when flattened, provided with two fleshy ridges rising at the base of the lip which divide up into 4 ridges in the intermediate lobe, 0,4 cm. long (from the mouth of the spur to the apex of the intermediate lobe), 3 lobed, the lateral lobes erect rotundate or subacute lineate, not quite 0,2 cm. long, intermediate lobe strongly concave, rotundate or subtruncate undulate — crisped on the margin, the spur short subglobose, scarcely 0,2 cm. long; column without a foot, 0,3 cm. long; pollinia subglobose, the caudicle broadly linear; gland subquadrate; capsule pendulous ovoid up to 2 cm. long, 1,5 cm. diam.
Habitat:
In coastal scrub in sand at elevations of 30 to 300 meters.
Phenology:
September to December-
Cultivation
Cold growing terrestrial.
Distribution:
SW. & S. Cape Prov.
References:
Wild Orchids of Southern Africa Stewart, Linder, Schelpe & Hall 1982; Orchids of Southern Africa Linder & Kurzweil 1999; Flora Capensis, Vol 5, Part 3, page 3, (1913) Author: (By R. A. ROLFE.); Reproductive biology of Acrolophia cochlearis (Orchidaceae): estimating rates of cross-pollination in epidendroid orchids Craig I. Peter, Annals of Botany, Vol. 104, No. 3, SPECIAL ISSUE: Orchid Biology (August 2009), pp. 573-581; A macro-ecological perspective on crassulacean acid metabolism (CAM) photosynthesis evolution in Afro-Madagascan drylands: Eulophiinae orchids as a case study Ruth E. Bone, The New Phytologist, Vol. 208, No. 2 (October 2015), pp. 469-481; A molecular phylogeny reveals paraphyly of the large genus Eulophia (Orchidaceae): A case for the reinstatement of Orthochilus Florent Martos, Taxon, Vol. 63, No. 1 (February 2014), pp. 9-23
Images:
Click on each image to see a larger version.

     Habitat/ In Situ     Habitat/ In Situ     Habitat/ In Situ         Habitat/ In Situ  
 Acrolophia micrantha, 01  Acrolophia micrantha, 02  Acrolophia micrantha, 03 Acrolophia micrantha, 04
Photograph© Cameron
McMaster. Image used
with kind permission.
Photograph© Cameron
McMaster. Image used
with kind permission.
Photograph© Cameron
McMaster. Image used
with kind permission.
Photograph© Cameron
McMaster. Image used
with kind permission.