68 Carex crus=corvi, shuttleworth.
syn. C. sicaeformis Boot. C. Halei. Dewey.
Spikes large, decompound, ovate, aggregated at the apex; bracts two=toothed at the base; perigynia alternated from a broad truncated base; slightly winged, much longer than the scale; style turnis at the base. Culm 2 to 3 feet high; Swamps.
Plate VIII fig 8 a perigynium and stigmas; b scale; c achenium.
Milwaukee in Wisconsin; Illinois and Ohio, extending south to Louisiana.
69 Carex stipata, Muhlenberg Syn. C. vulpinordea, For. (not of Michx)
Spikes numerous, aggregate into a sub-triangular head; perigynia lanceolate, compressed & truncate at the base, with a long beak, much longer than the scale; style not tumid at the base. Culm 2 feet high, flowers in May. Wet ground, common
Plate VIII fig 9 a perigynia (young) b same, mature; c serratures on the margin of the perigynia consisting of two hollow cells, very highly magnified; d pistillate scale; e staminate scale; f. germ and pistil; g a cross section of the stem; h a stamen.
Milwaukee to La Crosse & northward to Lake Superior in Wisconsin. Also in Illinois, Southern Indiana, Ohio, and Michigan. It extends to South Carolina; to the N. W. Coast and to the Arctic regions.
70 Carex vulpina, Linnaus
Spikes numerous, united into an elongated head; perigynia ovate, tapering into a beak, sub-sca brous on the margin, striated, but little longer than the scale; achenium oval; style tumic; scale ovate, acute. Culms 3 to 4 feet high
Plate VIII fig 10 - a Head of spikes; b the perigynia; c achenium & pistil; d section of the perigynium; e scale.
Illinois & Ohio. A native also of Europe, where it is quite common.
71-- Carex alopecoides, Tuckerman C. cephalophora, var. maxima Dewey.
Heads of 8 to 10 ovate-oblong dense spikes; perigynia compressed, very obscurely nerved, ovate from a broad, truncate base, a little longer than the conjugate scale; achenium pyriform; base of the style not tumid. Culm 2 to 4 feet high. Grows in woods & on dry ground.
Michigan; expending east to Western New York
72 Carex sparganoides, Muhlenberg.
Spikes 6 to 10 clustered above, more or less remote below, ovate; perigynia, diverging at maturity, broadly ovate, compressed, two toothed, scabrous on the margin, about twice the length of the ovate acute scale; achenium roundish-ovate; style short timid at the base. Culms two feet high; flowers in May. Moist grounds.
Plate VIII fig. 10. a Head of spikes one half the natural size; b a spike; c the perigynium and scale; d achenium, style & stigmas; e section of the perigynium.
Occurs at Milwaukee in Wisconsin; also in Illinois, southern Indiana, Ohio and Michigan. Extends to the southern states.