. 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. 107. Carex Richardsonii R. Br. Richardson's Sedge. Fig. 974. Carex Richardsonii R. Br. Frankl. Journ. 751. 1823. Stoloniferous, the cultns slender, rough, erect, 4/-12' tall. Leaves flat, about 1" wide, the basal shorter than or sometimes equalling the culm, those of the culm very short; bracts bladeless, sheathing, i'-l' long, usu- ally brown-purple with
. 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. 107. Carex Richardsonii R. Br. Richardson's Sedge. Fig. 974. Carex Richardsonii R. Br. Frankl. Journ. 751. 1823. Stoloniferous, the cultns slender, rough, erect, 4/-12' tall. Leaves flat, about 1" wide, the basal shorter than or sometimes equalling the culm, those of the culm very short; bracts bladeless, sheathing, i'-l' long, usu- ally brown-purple with a white hyaline acute summit; staminate spike solitary, stalked, 6"-i3" long; pistillate spikes 1 or 2, erect, narrowly cylindric, short-stalked, 4"-io" long, compactly many-flowered, close together, their stalks partly or wholly enclosed in the sheaths; perigynia obovoid, triangular, pubescent, about 1" long, minutely beaked, obscurely nerved, mostly shorter than the ovate, subacute, purple, conspicuously white-mar- gined scales; stigmas 3. In dry soil, Ontario to Saskatchewan, Alberta and Brit- ish Columbia, south to western New York, Illinois, Iowa and South Dakota. Summer. 108. Carex eburnea Boott. Bristle-leaved Sedge. Fig. 975. C. alba var. setifolia Dewey, Am. Journ. Sci. n : 316. 1826. C. eburnea Boott; Hook. Fl. Bor. Am. 2 : 226. pi. 225. 1840. Carex setifolia Britton; Britton & Brown, 111. Fl. 1: 332. 1896. Glabrous, pale green, culms filiform, smooth, weak, 4-15' long, from slender, elongated rootstocks. Leaves filiform, shorter than the culm, less than I" wide; bracts reduced to bladeless sheaths 2"-$" long; stami- nate spike solitary, sessile or very nearly so, 2"-4" long; pistillate spikes 2-4, erect, slender-stalked, 2"-4" long, rather less than 1" thick, loosely few-flowered, the upper commonly overtopping the staminate, the lower one sometimes distant; perigynia oblong, pointed at both ends, 3
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
