. 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 92. GRASS FAMILY. 25. Poa confusa Rydb. Tufted Spear- grass. Fig. 628. P. confusa Rydb. Bull. Torr. Club 32: 607. 1906. Culms densely tufted, i*0-3° tall, erect, slender; sheaths smooth and glabrous; ligule i"-i" long, obtuse or acutish, hispidulous on the outside; blades up to 8' long, i"-ii" wide, flat or involute, puberulent; panicl
. 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 92. GRASS FAMILY. 25. Poa confusa Rydb. Tufted Spear- grass. Fig. 628. P. confusa Rydb. Bull. Torr. Club 32: 607. 1906. Culms densely tufted, i*0-3° tall, erect, slender; sheaths smooth and glabrous; ligule i"-i" long, obtuse or acutish, hispidulous on the outside; blades up to 8' long, i"-ii" wide, flat or involute, puberulent; panicle narrow, 4'-6' long, its branches short and appressed; spikelets about 4" long, com- monly 4-flowered, the empty scales shining, strigu- lose above, the flowering scales narrow, a little less than 2" long, obtuse or rounded at the apex, rounded on the back below, hispidulous. In open places and on hills, Nebraska and Montana to Colorado. 93. DUPONTIA R. Br. Parry's Voy. App. 290. 1824. Low grasses, with flat leaf-blades and generally narrow panicles. Spikelets 2-4-flowered, the flowers all perfect. Two lower scales empty, extending beyond the flowering scales, membranous; flowering scales entire, membranous, with a tuft of hairs at the base. Stamens 3. Styles distinct. Stigmas plumose. [Name in honor of J. D. Dupont, French botanist.] Two arctic species, both circumboreal. Type species: Dupontia Fisheri R. Br. i. Dupontia Fisheri R. Br. Fisher's Du- pontia. Fig. 629. D. Fisheri R. Br. Parry's Voy. App. 291. 1824. Smooth and glabrous, culms s'-l2' tall, erect, simple. Sheaths overlapping; ligule 1" long or less; blades i'-6' long, i"-a" wide, flat; panicle usually contracted, \¥-2,¥ long, the branches less than ii' long, erect, or sometimes ascend- ing; spikelets few, about 2-flowered, 3"-4" long; empty basal scales thin, generally acute, the first i-nerved, somewhat shorter than the second, which is usually 3-nerved, the lateral
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
