. 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 44. GRASS FAMILY. 203 Panicle dense and contracted, spike-like, its branches short and appressed ; a grass of brackish marshes and wet sands. 2. A. maritima. Palet inconpicuous, minute, or wanting. Branches of the contracted panicle short, spikelet-bearing to the base. 3. A. asperifolia. Branches of the panicle slender, naked below. Flowering scale awned.
. 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 44. GRASS FAMILY. 203 Panicle dense and contracted, spike-like, its branches short and appressed ; a grass of brackish marshes and wet sands. 2. A. maritima. Palet inconpicuous, minute, or wanting. Branches of the contracted panicle short, spikelet-bearing to the base. 3. A. asperifolia. Branches of the panicle slender, naked below. Flowering scale awned. Awn flexuous, barbellate, twice the length of the 34" spikelet. 4. A. Elliottiana. Awn stouter, glabrous, rigid, usually bent, not twice the length of the spikelet. Branches of the panicle usually ascending; spikelets 1" long. Culms 6' tall or less; panicle 1' long or less; alpine grass. 5. A. rupestris. Culms i°-2° tall; panicle exceeding 2' long. 6. A. canina. Branches of the mature panicle spreading; spikelets i!4"-iJ4" long. Awn exserted; panicle branches glabrous or hispidulous. 7. A. borealis. Awn short; panicle branches hispid. 8. A. geminata. Flowering scale awnless, or very rarely with a short awn. Culms weak, decumbent or prostrate at the base; blades lax. 9. A. Schweinitzii. Culms and blades erect. Branches of the panicle capillary, elongated, usually dividing above the middle, spikelets often crowded at the extremities. Spikelets 54"-1" long; blades short. 12. A. hyematis. Spikelets i}4"-ij^" long; blades elongated. 11. A. altissima. Branches of the panicle not elongated, usually dividing at or below the middle. Spikelets about 1" long; a grass of low elevations. 10. A. perennans. Spikelets lJ4"-i^" long; a high mountain grass. 13. A. oreophila. i. Agrostis alba L. Agrostis alba L. Sp. PI. 63. 1753. Bot. Arr. the Red-top. Fiorin. Herd's-grass. Fig. 487. Agrostis vulgaris With. Bot. Arr. Brit. PI. Ed. 3, 132.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
