Base de données des plantes d'Afrique


Disa walteri Schltr.
Famille : ORCHIDACEAE
Informations sur le genre : Disa
 
 
Statut
Statut pour TA : accepté (présent)
 
Synonyme(s) hétérotypique(s)
=Herschelianthe goetzeana (Kraenzl.) Rauschert
=Herschelia goetzeana Kraenzl. (1901)
=*Disa goetzeana (Kraenzl.) Schltr. (1906)
 
Ecologie et distribution
Afr. Trop.
Biologie : Terrestrial herb 20-50 cm tall; tubers ellipsoid, c. 2x1,5 cm; sterile stem with 5-7 leaves in a tuft, narrowly linear, stiff, 17-24x0,1-0,3 cm, with prominent veins and thickened margins; flowering stem slender, with several distant lanceolate-acuminate sheaths; inflorescence to 6 cm long, 1-9-flowered; flowers pink to crimson, sometimes with a dark red spot at base of lip; bracts narrowly lanceolate-acuminate, 14-18 mm long; pedicel and ovary 11-14 mm long; dorsal sepal hemispherical, hood-like, 8-14x10-16 mm, without any distinct dorsal spur; lateral sepals spreading downwards, elliptical-oblong, c. 10x5 mm; petals erect, inside hood, broadened and cordate at base, upper part curved forward and acute, c. 7x2 mm; lip projecting forwards, 20-25x12 mm, base cuneate and entire, obscurely 3-lobed below middle, margins of lobes long-fimbriate.
Ecologie : Damp grassland; rock clefts; 2200-2800 m alt.
  Rare; collections enumerated by v. d. Niet & Gehrke, o.c.: 283.
 
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Carte
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