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Pterygodium pentherianum Schltr., Bot. Jahrb. Syst. 24: 432 (1897).
Description:
Plant 4–6 in. high; stem somewhat flexuous, slender; leaves 3–4, suberect or somewhat spreading, lanceolate-oblong, sheathing at the base, the lower 2 1/4 in. long, 3/4 in. broad, upper much smaller and narrower; scapes 4–6 in. high, 2–4-flowered; bracts lanceolate, acute, as long as the pedicels; flowers medium-sized, sulphur-yellow; dorsal sepal oblong-lanceolate, acute, concave, 4–4 1/2 lin. long; lateral sepals spreading, obliquely ovate-lanceolate, acute, very concave, 4–4 1/2 lin. long; petals cohering with the dorsal sepal into a somewhat expanded limb, obliquely and broadly obovate, obtuse, concave, 4–4 1/2 lin. long, rather broader than long; lip deflexed, bilobed, 2 1/2 lin. long, with oblong or subquadrate minutely denticulate lobes; appendage erect, fleshy, nearly oblong, conspicuously tridentate at the apex, 2–2 1/2 lin. Long.
Habitat:
Is found on clay soils in renosterveld from the Biedouw Valley and western Karoo to the Hex River.
Phenology:
Flowering is September to October.
Distribution:
WSW. Cape Prov.
References:
Orchids of Southern Africa by H. P. Linder; H. Kurzweil Published by A.A. Balkema, Rotterdam (1999); Welcome to the Pacific Bulb Society Wiki; Schltr. (1897) In: Bot. Jahrb. Syst. 24: 432
Images:
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Habitat/In situ	Habitat/In situ	Habitat/In situ
Photograph© Cameron McMaster. Image used with kind permission.	Photograph© Cameron McMaster. Image used with kind permission.	Photograph© Cameron McMaster. Image used with kind permission.