. Bulletin. Gramineae -- United States; Forage plants -- United States. 19 slightly scabrous, especially below the panicle, puberulent below the glabrous nodes; sheaths shorter than the internodes, striate, the lower ones glabrous, the upper scabrous; ligule 5 to 10 mm. long, acute, cleft at the apex; leaf-blades glabrous, rigid, 1 to 3 dm. long, 2 to 3 mm. wide. Panicles somewhat exserted, strict, purplish, about 1 cm. in diameter; rachis angular, scalirous; branches 1 to 2 cm. long, appressed, the lower ones generally remote; pedicels about as long as the spikelets, scabro- pubescent. Spikel
. Bulletin. Gramineae -- United States; Forage plants -- United States. 19 slightly scabrous, especially below the panicle, puberulent below the glabrous nodes; sheaths shorter than the internodes, striate, the lower ones glabrous, the upper scabrous; ligule 5 to 10 mm. long, acute, cleft at the apex; leaf-blades glabrous, rigid, 1 to 3 dm. long, 2 to 3 mm. wide. Panicles somewhat exserted, strict, purplish, about 1 cm. in diameter; rachis angular, scalirous; branches 1 to 2 cm. long, appressed, the lower ones generally remote; pedicels about as long as the spikelets, scabro- pubescent. Spikelets lan- ceolate, 5 mm. long; empty glumes subequal, l-nerved, lanceolate, acute or acumi- nate, 3 to mm. long, scabrous on the keel; flow- ering glume about 5 mm. long, 3-nerved, scabrous on the nerves and keel, bear- ing a rather stout scabrous awn at the apex, 1 to 3 mm. in length. Palea equaling the flowering glume, lan- ceolate, acute, or short-apic- ulate. Type collected on lava beds, Ser- rania de Ajusco, altitude 3,000 m., Federal District, 6675 C. G. Pringle, August 13, 1897; Sierra de San Fehpe, altitude 3,000 State of Oaxaca, 4914 C. G. Pringle, September 18,1894; same locality, C. L. Smith, no number, 1894. Muhlenbergia exilis Fourn. Mex. PI. 2: 84 (1881). San Francisco, State of Vera Cruz, 1506 C. L. Smith, 1894; Sierra ^ladre Mountains, west of Bolanos, State of Jalisco, J. N. Eose, no num- ber, September 16, 1897. Muhlenbergia flaviseta Scribn. U. S. Dept. Agr. :11 (1897). Dos Cajetas, State of Durango, 834 E. Palmer, October, 1896, abundant on the slop- ing sides of an arroyo. Muhlenberg-ia gracilis Trin. Gram. Unifl. 193 (1824). Sierra de San Felipe, altitude 3,075 m., State of Oaxaca, 928, 937 C. L. Smith, Sep- tember, 1894. MuMenbergia implicata Trin. Gram. Unifl. 193 (1824). Durango, State of Durango, 718, 769 E. Palmer, September, 1896. Muhlenbergia laxiflora Scribn. Zoe, 4: 389 (1894). Durango, State of Durango, 2356 J. N. Rose, Augu
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforageplantsunitedst
