. 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. Genus 72. GRASS FAMILY. 233 1. Sieglingia decumbens (L.) Kuntze. Heath- or Heather-grass. Fig. 560. Festuca decumbens L. Sp. PI. 75. 1753. Triodia decumbens Beauv. Agrost. 76. 1812. 5*. decumbens Bernh. Syst. Verg. Erf. 1: 20, 44. 1800. Culms 6-18' tall, erect, often decumbent at the base, simple, smooth and glabrous. Sheaths shorter than the internodes, villou
. 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. Genus 72. GRASS FAMILY. 233 1. Sieglingia decumbens (L.) Kuntze. Heath- or Heather-grass. Fig. 560. Festuca decumbens L. Sp. PI. 75. 1753. Triodia decumbens Beauv. Agrost. 76. 1812. 5*. decumbens Bernh. Syst. Verg. Erf. 1: 20, 44. 1800. Culms 6-18' tall, erect, often decumbent at the base, simple, smooth and glabrous. Sheaths shorter than the internodes, villous at the summit; ligule a ring of very short hairs; blades smooth beneath, usually scabrous above, 4"-ii" wide, the basal 3'-6' long, those of the culm i'-3' long; panicle i'-2' long, contracted, the branches 1' long or less, erect; spike- lets 3-5-flowered, 3"-s" long, the joints of the rachilla very short; lower scales equalling the spikelet, acute; flowering scales broadly oval, ciliate on the margins below, obtusely 3-toothed, with two tufts of hair on the callus. Introduced into Newfoundland. Native of Europe and Asia. Moor-grass. 73. TRIDENS R. & S. Syst. 2: 34. 1817. [Tricuspis Beauv. Agrost. 77. 1812. Not Pers. 1807.] Usually perennial grasses, with flat or involute leaf-blades, and the inflorescence com- posed of open or contracted and sometimes spike-like panicles. Spikelets 3-many-flowered, the flowers perfect or the upper ones staminate. Scales 5-many, membranous, sometimes firmer, the 2 lower empty, keeled, obtuse to acuminate, usually shorter than the rest, some- times longer; flowering scales 3-nerved, the midnerye or all the nerves excurrent, the mid- nerve and the lateral nerves or the margins pilose, the apex entire or shortly 2-toothed, the teeth obtuse to acute, the callus short and obtuse; palet shorter than the scale, compressed, 2-keeled. Stamens 3. Styles short, distinct. Stigmas plumose. [Latin, in reference to the teeth
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
