A text-book of grasses with especial reference to the economic species of the United States . lores-cence. In the British West Indiesit is called Bahama-grass. 243. Chloris Swartz.~Amoderate-sized genus, manyannual species of which areweeds in the tropics. On ac-count of the silky spikes theyare usually handsome species, C. Guyana Kunth,has been introduced in thesouthern states as a meadow-grass under the name ofRhodes - grass. (See SomeNew Grasses for the South,Yearbook, U. S. Dept. ) 244. Bouteloua Lag.—Grama-grasses. A genus ofabout 30 species, all Ameri-can, especially
A text-book of grasses with especial reference to the economic species of the United States . lores-cence. In the British West Indiesit is called Bahama-grass. 243. Chloris Swartz.~Amoderate-sized genus, manyannual species of which areweeds in the tropics. On ac-count of the silky spikes theyare usually handsome species, C. Guyana Kunth,has been introduced in thesouthern states as a meadow-grass under the name ofRhodes - grass. (See SomeNew Grasses for the South,Yearbook, U. S. Dept. ) 244. Bouteloua Lag.—Grama-grasses. A genus ofabout 30 species, all Ameri-can, especially abundant insouthwestern United Statesand on the Mexican are important grazing-grasses. Bouteloua gracilis () Lag. (B. oligostachyaTorr.). () Perennial; culms smooth, tufted, erect, 6 to 18 inches high;sheaths smooth, or the lower somewhat villous, bearing at thethroat a tuft of long hairs on each side; hgule very short; bladesmostly basal, flat or usually involute, flexuous or curly, 1 to 2 , 2 to 4 inches long, scabrous on the margin; spikes usually 2,. Fig. 47. Bouteloua gracilis. Inflores-cence, X 1; spikelet, XIO. CHLORIDES 217 1 terminal, the other a short distance below, both nearly sessileand more or less ascending, about an inch long, somewhat curved;spikelets sessile, about 5 mm. long, densely crowded on one side ofthe pubescent rachis; glumes narrow, the upper villous and more orless beset with dark papilla;, the lemma pubescent; rudimentrounded, 3-awned. The end of the rachis does not project beyondthe spikelets. The spikes turn with the wind Uke vanes. In theless arid portions of the Great Plains this species forms a rathercompact sod; in drier regions the tufts are isolated. This is some-times called blue grama but to stockmen it is usually known merelyas grama. It is the most important economic species of the genus,ranging on the Great Plains from Manitoba to South America andwestward into New Mexico, Arizona and .southern Calif
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Keywords: ., bookauthorhi, bookcentury1900, bookdecade1910, booksubjectgrasses
