137. Carex Amphibola Steud. Narrow-Leaved Sedge

Fig. 1004

Carex amphibola Steud. Syn. PI. Cyp. 234. 1855. Carex grisea var. angustifolia Boott, 111. 34. 1858. Carex grisea var. (?) rigida Bailey, Mem. Torr. Club 1: 56. 1889.

Glabrous, culms very slender, slightly scabrous above, erect, or spreading, 1°-2° high. Leaves 1"-2" wide, mostly erect and somewhat rigid, the basal shorter than the culm; bracts similar to the upper leaves, erect, not over 1" wide, overtopping the spikes; staminate spike usually peduncled, sometimes sessile; pistillate spikes 2-4, erect, 1/2' - l' long, less than 2" thick, loosely several-flowered, the upper sessile, the lower often from lower axils on long filiform stalks; perigynia oblong or obo-void, scarcely turgid, firm, pointed but beakless, 3-angled, many-striate, more or less 2-ranked, 2" long, about 1" thick, longer or lower shorter than the ovate, scarious-margined, awned spreading scales; stigmas 3.

In dry soil, New York to Iowa and Missouri, south to Florida and Texas. Intergrades with the next. April-June.

138. Carex Grisea Wahl. Gray Sedge

Fig. 1005

Carex-grisea Wahl. Kongl. Vet. Acad. Handl. (II.) 24: 154. 1803.

Glabrous, culms stoutish, erect or ascending, smooth or nearly so, 1°-2 1/2° high. Leaves light green, sometimes slightly glaucous, flat, usually soft and spreading, 2"-3 1/2" wide, the basai shorter than or exceeding the culm; bracts similar to the leaves, spreading, much overtopping the spikes; staminate spike solitary, sessile, or short-peduncled; pistillate spikes 3-5, dense, oblong, 5-15-flowered, 4"-12" long, 2"-3 1/2" thick, the upper usually sessile and close together, the lower slender-stalked and distant, but not from lower axils; perigynia oblong, about 2.1/2" long, 1" thick, nearly terete, turgid, subacute but beakless, finely many-striate, longer or the lower shorter than the ovate, scarious-margined, cuspidate or awned scales; stigmas 3.

In woods and thickets, Maine to Ontario and Minnesota, south to North Carolina and Arkansas. May-July.

139. Carex Glaucodea Tuckerm. Glaucescent Sedge

Fig. 1006

Carex grisea var. mutica Carey, in A. Gray, Man. 552. 1848. Not C. mutica R. Br. 1823.

Carex glaucodea Tuckerm.; Olney, Proc. Am. Acad. 7: 395. 1868.

Similar in habit to Carex grisea, but pale and usually very glaucous all over, culms smooth, erect or spreading, 4-24 high. Leaves 2"-$" wide, the basal shorter or longer than the culm; bracts foliaceous, overtopping the spikes; staminate spike sessile or nearly so; pistillate spikes 3-5, 5"-15" long, 2 1/2" thick, erect, densely 10-45-flowered, widely separate, the lower slender-stalked; perigynia oblong, many-striate, 1 1/2"-2" long, sub-acute, beakless, mostly nearly twice as long as the ovate scarious-margined, acute, cuspidate or short-awned scales; stigmas 3.

In open fields and meadows, Massachusetts to Ontario, Illinois, Virginia and Arkansas. Intergrades with the next. May-July.