. 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. 64. BECKMANNIA Host, Gram. Austr. 3: 5. pi. 6. 1805. A tall erect grass with flat leaf-blades and erect spikes borne in a terminal panicle. Spike- lets 1-2-flowered, globose, compressed. Scales 3 or 4; the 2 lower empty, membranous, sac- cate, obtuse or abruptly acute; the flowering scales narrow, thin-membranous; palet hyaline, 2-keeled. Stamens 3. Styles dist
. 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. 64. BECKMANNIA Host, Gram. Austr. 3: 5. pi. 6. 1805. A tall erect grass with flat leaf-blades and erect spikes borne in a terminal panicle. Spike- lets 1-2-flowered, globose, compressed. Scales 3 or 4; the 2 lower empty, membranous, sac- cate, obtuse or abruptly acute; the flowering scales narrow, thin-membranous; palet hyaline, 2-keeled. Stamens 3. Styles distinct. Stigmas plumose. Grain oblong, free, enclosed in the scale and palet. [In honor of Johann Beckmann, 1730-1811, teacher of Natural History at St. Petersburg.] A monotypic genus of the north temperate zone. Type species : Phalaris erucaeformis L. l. Beckmannia erucaeformis (L.) Host. Beck- mann's Grass. Slough-grass. Fig. 551. Phalaris erucaeformis L. Sp. PI. 55. 1753. B. erucaeformis Host, Gram. Austr. 3: 5. 1805. Beckmannia erucaeformis var. unifiora Scribn.; Wats. & Coult. in A. Gray, Man. Ed. 6, 628. 1890. Glabrous, culms ii°-3° tall, erect, simple, smooth. Sheaths longer than the internodes, loose; ligule 2"-4" long; blades 3'-^' long, 2"-^" wide, rough; panicle 4'-io' in length, simple or compound, the spikes about ¥ long; spikelets i"-i4" long, 1-2-flow- ered, closely imbricated in two rows on one side of the rachis; scales smooth, the outer saccate, obtuse or abruptly acute; flowering scales acute, the lower gen- erally awn-pointed, the upper rarely present. In wet places, western Ontario to Alaska, south to Iowa, Colorado and California. July-Sept. 65. ELEUSINE Gaertn. Fruct. & Sem. i: 7. pi. 1. 1788. Tufted annual or perennial grasses, with flat leaf-blades and spicate inflorescence, the spikes digitate or close together at the summit of the culm. Spikelets several-flowered, sessile, closely imbricated in two rows on one si
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
