. 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. GRAMINEAE. Vol. I. 56. Panicum Addisonii Nash. Low Stiff Panic-grass. Fig. 366. P. Addisonii Nash, Bull. Torr. Club, 25 : 83. 1898. Culms io'-is' tall, rigid, tufted, erect or decum- bent at the base, at length much branched, the branches erect, pubescent below with long nearly appressed hairs which decrease in length toward the summit where they are very short
. 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. GRAMINEAE. Vol. I. 56. Panicum Addisonii Nash. Low Stiff Panic-grass. Fig. 366. P. Addisonii Nash, Bull. Torr. Club, 25 : 83. 1898. Culms io'-is' tall, rigid, tufted, erect or decum- bent at the base, at length much branched, the branches erect, pubescent below with long nearly appressed hairs which decrease in length toward the summit where they are very short. Sheaths often longer than the internodes, appressed-pubes- cent, at least the lower ones; ligule a ring of hairs; blades erect, lanceolate, thickish, smooth and gla- brous on both surfaces, rough on the margins, acuminate, i'-z' long, ii"-3" wide; panicle ovate to oblong, i'-2l' long, its branches spreading or ascending; spikelets obovate, 1" long, the first scale acute or acutish, about one-half as long as the spikelet, i-nerved, pubescent, second and third scales 9-11-nerved, densely pubescent with spreading hairs. Sandy soil, Massachusetts to South Carolina. May- June. 57. Panicum Commonsianum Ashe, mons' Panic-grass. Fig. 367. Com- P. C ommonsianum Ashe, Journ. E. Mitch. Sci. Soc. 15: 55. 1898. Culms tufted, i2'-2o' tall, pubescent below with long nearly appressed hairs, the upper portion gla- brous or puberulent, finally branched, the nodes barbed with spreading hairs; sheaths, at least the lower ones, pubescent with long often appressed hairs; ligule i" long or more; blades ii'~4' long, 1V-4" wide, erect, lanceolate, appressed-pubescent on the lower surface with stiff hairs, the upper sur- face glabrous or with some long spreading hairs toward the base; panicle ii'-3' long, ovate, its branches spreading or ascending; spikelets ii" to a little less than 3" long and i as broad, obovoid, pubescent with spreading hairs, the first scale abo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
