. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 16. ECHINOCHLOA Beauv. Agrost. 53. 1812. Usually tall grasses, commonly annuals, with broad leaf-blades, and a terminal inflores- cence consisting of i-sided racemes. Spikelets i-flowered, singly disposed, or in smaller racemes or clusters on the ultimate divisions of the inflorescence. Scales 4, the outer 3 membranous, hispid on the nerves, the third and usual
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 16. ECHINOCHLOA Beauv. Agrost. 53. 1812. Usually tall grasses, commonly annuals, with broad leaf-blades, and a terminal inflores- cence consisting of i-sided racemes. Spikelets i-flowered, singly disposed, or in smaller racemes or clusters on the ultimate divisions of the inflorescence. Scales 4, the outer 3 membranous, hispid on the nerves, the third and usually also the second scale awned or awn- pointed, the awn often very long, the fourth scale indurated at maturity, shining, pointed, the margins thick and inrolled, enclosing a palet of similar texture, which is free at the tip, and a perfect flower. Stamens 3. Styles distinct. Stigmas plumose. [Greek, in reference to the hispid hairs of the spikelets.] Species about 12, mostly in warm and tropical regions. Type species: Panicum Crus-galli L. Sheaths glabrous. Spikelets iyi" long, the second and third scales more or less awned. 1. jE. Crus-galli. Spikelets 1" long, the second and third scales merely awn-pointed. 2. B. colona. Sheaths, at least the lower ones, densely papillose-hirsute. 3. E. Walteri. i. Echinochloa Crus-galli (L.) Beauv. Barnyard-grass. Cockspur-grass. Barn-grass. Water-grass. Fig. 308. Panicum Crus-galli L. Sp. PI. 56. 1753. Echinochloa Crus-galli Beauv. Agrost. 161. 1812. Culms 2°-4° tall, often branching at base. Sheaths smooth and glabrous; blades 6'-2° long, l'-i' wide, glabrous, smooth or scabrous; panicle composed of 5-15 sessile erect or ascending branches, or the lower branches spreading or reflexed; spikelets ovate, green or purple, densely crowded in 2-4 rows on one side of the rachis; second and third scales about ii" long, scabrous or hispid, the third scale more or less awned, empty, the fourth ovate, abruptly pointed. In cultivate
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
