(Last Modified On 10/18/2012)
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(Last Modified On 10/18/2012)
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Species
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LASIACIS SORGHOIDEA
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PlaceOfPublication
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Contr. U. S. Nat. Herb. 18:338. 1917.
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Synonym
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Panicum lanatum Swartz, Prodr. Veg. Ind. Occ. 24. 1788. Not P. lanatum Rottb., 1776. Panicum sorghoideum Desv. ex Hamilt. Prodr. P1. Ind. Occ. 10. 1825. Panicum divaricatum var. lanatum Schlecht. & Chamisso, Linnaea 6:33. 1831. Panicum praegnans Steud. Syn. P1. Glum. 1:74. 1854. Panicum lanatum /8. sorghoideum Griseb. Fl. Brit. W. Ind. 551. 1864. Panicum martinicense Griseb. Fl. Brit. W. Ind. 552. 1864. Panicum swartzianum Hitchc. Contr. U. S. Nat. Herb. 12:140. 1908. Lasiacis swartziana Hitchc. Bot. Gaz. 51:302. 1911.
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Description
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Robust with a strong central cane; culms erect or clambering, 2-7 m. high, freely branching, the main branches as much as 1 m. long, arcuate, drooping, or the branchlets fascicled on the main culm; sheaths papillose-hirsute to glabrate with a densely villous line on the collar, those of the main culm and branches shorter than the internodes, those of the branchlets longer than the intternodes, often somewhat crowded; ligule inconspicuous; blades lanceolate, symmetrical, velvety on both surfaces or nearly glabrous above, those of the main culm as much as 20 cm. long and 3 cm. wide, those of the branches mostly 8-15 cm. long, 1-3 cm. wide, and those of the ultimate branches frequently much smaller; panicles of the main branches 10-20 cm. long, open and comparatively loosely many- flowered, the panicles of the fascicled and ultimate branches usually much reduced; spikelets 4-5 mm. long.
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Common
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Carricillo
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Distribution
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Thickets, ravines, and forest borders, Mexico and the West Indies to Bolivia and Argentina.
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Specimen
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CHIRIQUI: El Boquete, Hitchcock 8269, 8270, 8282, 8286, 83II, 83I5; KilliP 4544; Davidson 7I0; Cerro Vaca, Pittier 533I, 5339. CANAL ZONE: Toro Point, Hitch- cock 8054; Chagres, Fendler 37I; between France Field, Canal Zone, and Catival, Panama', Standley 30I53; Gatuin, Hitchcock 9175, 9I77, 9I82; Barro Colorado Island, Standley 40837; Gamboa, Standley 28320; Ancon Hill, KilliP 4028; Piper 528I; Williams 4; Las Cascadas Plantation, Standley 25775, 29523; Summit, Allen 2281; Pedro Miguel, Hitchcock 7955; Red Tank to Pueblo Nuevo, Piper 52I9; between Miraflores and Corozal, Pittier 2I96; Corozal, Killip 4186; Culebra, Pittier 2II8; Standley 25955, 25987, 2600I; Balboa, Hitchcock 8003; Standley 25452, 26065, 293I9; Greenman & Greenman 5052.
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