Bulbostylis junciformis (Kunth) C. B. Clarke

Bulbostylis junciformis (H.B.K.) Lindm. Bih. Sv Vet.-Akad. Handl. 26 (3 )^ 19. 1900.
Isolepis junciformis H.B.K. Nov. Gen. & Sp. 1 : 222. 1816.
Scirpus junciformis Poir. in Lam. Encyc. Suppl. 5: 105. 1817. Not 5. junciformis Retz. 1791. Scirpns Humboldtii Spreng. Syst. 1 : 213. 1825.
Oncostylis junciformis var. y Humboldtiana Nees in Mart. Fl. Bras. 2^ : 86. 1842. Bulbostylis junciformis var. laxiuscula Kiikenth. Repert. Sp. Nov. 23: 198. 1926. (Pinar del Rio, Cuba.)
Perennial with bulbous-thickened culm bases ; culms rigid, nearly glabrous, filiform, 2-4 dm. high; leaves glabrous, rigid, filiform, deeply channeled, frequently glaucous, usually half as long as the culms, the sheaths dull castaneous to dark brown, the apices long-fibrillose ; inflorescence narrowly umbellate, of capitate glomerules on rays 1-3 cm. long, rarely decompound, not infrequently reduced to a single capitate inflorescence; spikelets lanceolate, acute, flattened, 4-6 mm. long, numerous in each glomerule ; scales lanceolate, acute to shortmucronate, castaneous to dull reddish-brown; achene bluntly trigonous, obovate, 0.7-0.9 mm. long, 0.5-0.7 mm. wide, somewhat truncate at the apex, most frequently with a translucent, shining, golden-brown, subpapillose surface, sometimes opaque-stramineous, often coated at maturity with a bluish-gray waxy covering through which the papillae protrude ; stamens 3, the anthers acuminate (1.0 mm. long).
Type locality : Northeastern Venezuela : "in temperatis montanis prope Guachari et villam Cocoller" (Humboldt).
Distribution: Cuba; British Honduras (Lundell 6696); Panama; northern South America.