African Plant Database


Disa ornithantha Schltr.
Family : ORCHIDACEAE
Protologue : Bot. Jahrb. Syst. 53: 538 (1915) 
Information on the genus : Disa
 
 
Status
Status for TA : accepted (present)
 
Synonym(s) Heterotypic
=Disa alinae Szlach. (1994)
 
Ecology and distribution
Trop. Afr.
Biology : Terrestrial herb; tubers ovoid, to 6x1-2 cm, densely tomentose; sterile stem to 6 cm tall, with overlapping sheaths below and 1-3 oblong acute leaves 15-18x0,4-1 cm at apex; flowering stem 19-50 cm tall, with 10-14 appressed leaf sheaths, the largest 2,5-6x1-1,5 cm; inflorescence dense, 4-10 cm long, 4-6 cm Ø, 1-2-6-flowered; flowers orange or scarlet, vermillion-red, spotted with red; bracts leafy, lanceolate, long-acuminate, 25-70 mm long; pedicel and ovary 20-30 mm long; dorsal sepal with long claw, blade rounded 15-30x10-12 mm, with spur at middle, pendent, filiform, c. 10 mm long; lateral sepals spreading upwards, obliquely oblong, 15-25x7-12 mm; petals erect, 20-30x5-6 mm, 2-lobed, anterior lobe ovate, 9-11 mm long with incurved margins, posterior lobe linear, c. 20 mm long, upper part drawn out into a narrow twisted or bent appendage; lip linear, acute, 10-15x1 mm, pendent.
Ecology : Damp or seasonally wet grassland; often in seepage areas; edge of dambos; Brachystegia woodland; 1000-2300 m alt.
  Resembling, and closely related to D. erubescens.
  Flowers self-pollinated (see la Croix & al., Orchids Malawi: l.c.).

Bibliography for Southern Africa :
  • LEBRUN, J. P. & A. L. STORK (1997). Enumération des plantes à fleurs d’Afrique tropicale. Gamopétales: Ericaceae à Lamiaceae. Énum. Pl. Fleurs Afr. Trop. 4: 128
 
More info on :
see under Jstor_African Plant Initiative
see under chg
see under Flore d'Afrique Centrale
see under The International Plant Name Index
see under Flora of Mozambique
see under African Plants - a Photo Guide
see under Flora of Zimbabwe
 
Map
carte afrique num 43363
 
Record n°43363
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