Comments
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Names Isolepis lupulinus and I. roylei were published simultaneously, on same page by Nees (l.c. 1834), however, the former was combined under Schoenoplectus first.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Annual, forming small tufts, 15-25 cm. Root system small. Stem 0.5-1 mm diam., terete, grooved, smooth, green. Sheaths two, lower c. 10 mm, upper to 50 mm, in both one side green, mouth oblique, margin widely scarious; blades reduced to mucro, c. equalling ligule in length. Inflorescence a group of 2-12 sessile spikes, 10-25 mm diam.; lowest bract up to 13 mm, terete, 0.5-1 mm diam., slightly nodose, grooved, smooth, obtusely pointed. Spikes 5-12 x 3-7 mm, ovoid or ellipsoid; glumes finally reflexed, 2.8-3.6 mm, cymbiform, ovate, midnerve area green, narrow, smooth, extending into short, slightly recurved mucro, sides many-nerved, golden brown, slightly glossy, apex gently tapering, margins hardly scarious. Perianth bristles 0; stamens 3, anthers c. 0.5 mm; stigmas 3. Nut 1.2-1.3 x 0.8-1 mm, obovoid, apiculate, trigonous, almost plano-convex, sides concave, transversely rugulose, black brown.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
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Distribution: Iraq, SE Uzbekistan, Tadjikistan, Afghanistan, Pakistan, N. India; in Eastern Africa reported from Kenya to Transvaal.
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Synonym
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Isolepis lupulina Nees, in Wight, Contrib. Bot. India: 107. 1834. Scirpus lupulinus (Nees) Roshev., FL. USSR, 3: 53. 1935 non Spreng; Isolepis roylei Nees, in Wight, Contrib. Bot. Ind: 107. 1834; Scirpus roylei (Nees) Parker in Duthie, Fl. Gangetic Plain 3: 361. 1929. Schoenoplectus roylei (Nees) Ovcz. & Czukav., Fl. Tadjik. SSR, 2: 40. 1963. Scirpus quinquefarius Hamilton ex Boeck. in Linnaea 36: 701. 1870; Haines & Lye, Sedges and rushes E. Africa: figs. 76-77. 1983 as S. roylei.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA