182. Carex Haydeni Dewey. Hay Den's Sedge

Fig. 1049

Carex aperta Carey, in A. Gray, Man. 547. 1848. Not Boott, 1840. C. Haydeni Dewey, Am. Journ. Sci. (II.) 18: 103. 1854. C. stricta var. decora Bailey, Bot. Gaz. 13: 85. 1888.

Gabrous, similar to small forms of C. stricta, culms slender, rough above, seldom over 2° high. Leaves 1"-1 1/2" wide, rough-margined, shorter than or sometimes a little overtopping the culm, the lower sheaths slightly or not at all filamentose; lower bract foliaceous, about equalling the culm; pistillate spikes linear-cylin-dric, 6"-15" long, about 2" in diameter, erect or somewhat spreading, all sessile or nearly so, sometimes with a few staminate flowers at the summit; perigynia sub-orbicular or obovate, obtuse, about 3/4" broad, faintly 2-4-nerved, minutely beaked, the orifice entire; scales lanceolate, purplish, spreading, very acute, strongly exceeding the perigynia; stigmas 2.

Swamps, New Brunswick to Minnesota, south to New Jersey and Missouri

182 Carex Haydeni Dewey Hay Den s Sedge 1049

183. Carex Torta Boott. Twisted Sedge

Fig. 1050

Carex torta Boott; Tuckerm. Enum. Meth. 11. 1843.

Glabrous, rather light green, in rather loose clumps, culms thick at base, aphyllopodic, erect, smooth or slightly scabrous above, 1 1/2°-3° tall, from thick hard rootstocks, short-stoloniferous. Leaves about 2" wide, those of the fertile culm very short; sheaths not filamentose; lower bract leaf-like, sheath-less or short-sheathing; staminate spike usually one, stalked; pistillate spikes 3-6, erect, spreading or drooping, slender-peduncled or upper often sessile, linear, 1'-3' long, about 2" in diameter, sometimes compound, often loosely flowered toward the base; perigynia oblong or narrowly ovate, green, nerveless, l"-1 1/2" long, the short beak more or less twisted when dried; scales ovate-oblong, obtuse or subacute, dark with a green midvein, shorter and mostly narrower than the perigynia; stigmas 2.

Generally in rocky beds of streams, Quebec to Minnesota, south to North Carolina and Missouri. Ascends to 2600 ft. in Virginia. June-July.

183 Carex Torta Boott Twisted Sedge 1050

184. Carex Concolor R. Br. Bigelow's Sedge

Fig. 105i

Carex rigida Gooden. Trans. Linn. Soc. 2: 193. pl. 22.

1794. Not Schrank, 1789. Carex concolor R. Br. in Parry's Voy. App. 283. 1823. Carex Bigelovii Torr.; Schwein. Ann. Lye. N. Y. 1: 67.

1824. Carex hyperborea Drej. Rev. Crit. Car. 43. 1841.

Glabrous and smooth throughout or very nearly so, culms phyllopodic, usually low and rigid, in small clumps, sharp-angled, erect, 4'-18' tall, freely short-stoloniferous, the rootstocks stout, scaly. Leaves 1 1/2"-3 1/2" wide, with revolute margins, not exceeding the culm, the lower bracts similar, but shorter; staminate spike stalked, sometimes pistillate at the base; pistillate spikes 1-4, short-oblong to linear-cylindric, usually loosely flowered at the base, dense above, 3"-2o" long, 1 1/2'-2 1/2" thick, the upper sessile, the lower often slender-stalked; perigynia oval, 1 1 /4"-ii" long, ascending, faintly nerved or nerveless, scarcely beaked, the orifice entire; scales purple-brown with a narrow light midvein and often with hyaline margins, obtuse or the lower acutish, equalling or a little exceeding the perigynia; stigmas 2, rarely 3.

Greenland to Alaska, south to the higher mountains of northern New England and New York, Colorado and California. Also in Europe and Asia. Very variable. Summer.

184 Carex Concolor R Br Bigelow s Sedge 1051