. 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. 258 GRAMINEAE. Vol. 16. Poa Wolfii Scribn. Wolf's Spear-grass. Fig. 619. Poa Wolfii Scribn. Bull. Torr. Club 21 : 228. 1894. Culms 2°-3° tall, erect, slender, simple, smooth and glabrous. Sheaths shorter than the internodes; ligule i" long; blades 1" wide or less, smooth beneath, rough above, those of the culm 2'-4' in length, the basal much longe
. 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. 258 GRAMINEAE. Vol. 16. Poa Wolfii Scribn. Wolf's Spear-grass. Fig. 619. Poa Wolfii Scribn. Bull. Torr. Club 21 : 228. 1894. Culms 2°-3° tall, erect, slender, simple, smooth and glabrous. Sheaths shorter than the internodes; ligule i" long; blades 1" wide or less, smooth beneath, rough above, those of the culm 2'-4' in length, the basal much longer; panicle 3'-6' in length, lax, its branches erect or ascending, flexuous, ii'-24' long; spikelets 2-4-flowered, 2i"-3" long; scales acute, the lower unequal, 3-nerved, glabrous, rough on the keel, the first shorter than the second; flowering scales about 2" long, copiously webbed at the base, 5-nerved, the marginal and midnerves silky- pubescent for more than half their length, the interme- diate nerves prominent, naked. Illinois to Minnesota and Tennessee. 17. Poa brachyphylla Schult. Short-leaved Spear-grass. Fig. 620. Poa brevifolia Muhl. Gram. 138. 1817. Not DC. 1806. Poa brachyphylla Schult. Mant. 2: 304. 1824. Culms i°-3° tall. Sheaths often shorter than the internodes; ligule 4"—ij" long; leaves smooth be- neath, rough above, l"-2" wide, abruptly acute, those of the culm ¥-4' long, the uppermost sometimes almost wanting; basal leaves usually equalling or nearly as long as the culm; .panicle 2i'-s' in length, open, the branches ascending, widely spreading or often reflexed, 1I-3' long, spikelet-bearing at the ends; .spikelets 3-6-flowered, 2i"-3l" long; empty basal scales unequal, acute, glabrous, the lower i-nerved, the upper 3-nerved; flowering scales slightly webbed at the base, 2"-2i" long, obtuse, Swerved, the keel and marginal nerves sparingly pubescent, the intermediate nerves prominent, naked. In rock
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
