Satyrium elongatum Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 268 (1898).
A terrestrial herb 4.-5-9 dm. high, glabrous except for the roots; tubers ellipsoid to elongate-ovoid, 4-4.5 cm. long, 1-2 cm. in diameter, densely tomentose; roots slender, flexuous, pubescent. Sterile stem to 7 cm. long, 3-4-leaved; 2 lower leaves sheath-like, obtuse, the upper leaves lanceolate to oblanceolate, acute, up to 17-19 cm. long and 3.5-5. cm. broad. Fertile stem slender to rather stout, almost covered by sheathing leaves; sheaths 6-10, lanceolate, acute, up to 5-12 cm. long and 1.5-3 cm. broad. Inflorescence narrowly cylindrical, 11-30 cm. long, 2 cm. in diameter, rather loosely many-flowered; bracts soon reflexed, lanceolate, acute, 8-27 mm. long, the lower ones longer than the flowers. Flowers curved outwards, sessile, green or greenish-white, becoming brown; ovary stout, 5-7 mm. long. Sepals and petals much decurved, united to one another and to the lip in their basal third; intermediate sepal elliptical-oblong, rounded, 4-5 mm. long, scarcely 1 mm. broad; laterals obliquely oblanceolate-oblong, obtuse, a little longer than the intermediate, ± 1.5 mm. broad, 2-veined. Petals oblanceolate, rounded, shorter than sepals, 0.5 mm. broad, 1-veined. Lip ellipsoid, with a narrow mouth, the apex shortly recurved, 5.5-8 mm. long; spurs parallel to ovary, 6-7.5 mm. long, ± 1 mm. in diameter, scarcely tapering. Column inside lip, much curved, 3.5-4 mm. high; stigma erect, ± concave, transversely elliptical, 1.5 mm. high, 2 mm. broad, rostellum 3-lobed, the middle-Iobe much larger than the tooth-like side lobes, broadly spoon-shaped from a narrow base, apex upcurved.
Marshy ground, grassy slopes, open bush 1500–1800 m.
As given for the genus.
Tanzania to S. Trop. Africa
Flora of Tropical East Africa Summerhayes Orchidaceae Part 1 1968; Flora Zambesiaca Vol 11, Part 1, (1995) Author: I. la Croix and P.J. Cribb; African Orchids: XXX V. S. Summerhayes, Kew Bulletin, Vol. 20, No. 2 (1966), pp. 165-199
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