140. Carex Flaccosperma Dewey. Thin-Fruited Sedge

Fig. 1007

Carex laxiflora var. (?) mutica Torr. Ann. Lye. N. Y. 3:

414. 1836. Not C. mutica R. Br. 1823. Carex flaccosperma Dewey, Am. Journ. Sci. (II.) 2: 245.


Similar to Carex grisea and C. glaucodea; slightly glaucous, rather deep green, culms erect, 6'-2° high. Leaves thin and flat, the basal ones 3"-9" wide, usually shorter than the culm, the bracts leafy, much overtopping the spikes; staminate spike sessile or nearly so; pistillate spikes 2-4, 6"-15" long, 2"-3" thick, densely 10-40-flowered, widely separate, oblong, erect, the lower slender-stalked; perigynia oblong, 3-ahgled, striate-nerved, subacute, 2 1/4" - 3 long; scales broadly ovate, green, with slightly scarious margins, acute, cuspidate or the upper obtuse, 2-3 times shorter than the perigynia; stigmas 3.

Southern Missouri to Texas, east to North Carolina and Florida. June-July.

140 Carex Flaccosperma Dewey Thin Fruited Sedge 1007

141. Carex Gracillima Schwein. Graceful Sedge

Fig. 1008

Carex gracillima Schwein. Ann. Lye. N. Y. 1: 66. 1824. Carex gracillima var. humilis Bailey, Mem. Torr. Club 1: 71. 1889.

Glabrous, culms slender, erect, smooth or nearly so, 1°-3° high. Leaves dark green, 1 1/2"-4 1/2" wide, shorter than the culm, the basal ones wider than the upper; lower bract foliaceous, sometimes overtopping the spikes; spikes 3-5, narrowly cylindric, usually densely flowered except at the base, 1'-2 1/2' long, about 1 1/2" thick, or sometimes much reduced, filiform-stalked and drooping or ascending, the upper one partly or wholly staminate; perigynia ovoid-oblong, slightly swollen, few-nerved, glabrous, 1 1/2" long or less, rounded at apex, beakless; scales thin, ovate-oblong, very obtuse or the lower cuspidate, pale, scarious-margined, one-half as long as the perigynia or lower nearly as long; stigmas 3.

In moist woods and meadows, Newfoundland to Manitoba, North Carolina, Ohio and Michigan. May-July. A hybrid with C. complanata occurs at Philipstown, Putnam County, N. Y.

Carex Sullivantii Boott, is a hybrid with C. hirtifolia, found in Ohio, New York and Delaware.

141 Carex Gracillima Schwein Graceful Sedge 1008

142. Carex Prasina Wahl. Drooping Sedge

Fig. 1009

Carex prasina Wahl. Kongl. Vet. Acad. Handl. (II.) 24:

161. 1803. Carex miliacea Muhl.; Willd. Sp. PI. 4: 290. 1805.

Glabrous, rather light green, culms slender, slightly roughened above, sharply 3-angled, l°-2 1/2° high. Leaves shorter than or equalling the culm, flaccid, roughish, 1 1/4"-2 1/2" wide; lower bract similar, short-sheathing, commonly overtopping the spikes; staminate spike solitary, stalked, sometimes partly pistillate; pistillate spikes 2 to 4, narrowly linear-cylindric, drooping, the lower filiform-stalked, the upper short-stalked, 1 -2 1/2 long, 2" in diameter, many-flowered, attenuate at base; perigynia light green, ovate-lanceolate, triangular, 1 1/2"-2" long, 3/4" wide, nerveless or nearly so, tapering into a smooth minutely 2-toothed or entire beak; scales ovate, acute, acuminate, or short-awned, hyaline, with green midrib, shorter than the perigynia; stigmas 3.

In meadows and moist thickets, Maine to Michigan, District of Columbia and Ohio, south in the Alleghanies to Georgia. Ascends to 4200 ft. in Virginia. May-July.

142 Carex Prasina Wahl Drooping Sedge 1009142 Carex Prasina Wahl Drooping Sedge 1010