. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 226 CYPEKACEAE (SEDGE FAMILY) 895. C. rosea. 41. C. rilsea Sohkuhr. Always slender and weak, erect, 2-7 dm. high. culms exceeding the narrow ( mm. broad) leaves ; spikes 3-8, &-ll>-flowered, the uppermost aggregated, the others cm. apart, the lowest usually with a setaceous bract; perigynium lance-ovoid, plano- convex, shining, nerveless, rough on the edges above, with a flat bidentate beak, perfectly squarrose, very green, 2
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 226 CYPEKACEAE (SEDGE FAMILY) 895. C. rosea. 41. C. rilsea Sohkuhr. Always slender and weak, erect, 2-7 dm. high. culms exceeding the narrow ( mm. broad) leaves ; spikes 3-8, &-ll>-flowered, the uppermost aggregated, the others cm. apart, the lowest usually with a setaceous bract; perigynium lance-ovoid, plano- convex, shining, nerveless, rough on the edges above, with a flat bidentate beak, perfectly squarrose, very green, mm. long, about twice longer than the translucent white scale. — Open dry woods, N. S. to Man., and southw. May-July. Pig. 395. Var. radiata Dewey. Much more slender, the loose culms sometimes almost capillary; spikes 2-5, scattered, 2-i-flowered; perigynium mostly narrower. — Rich woods, e. Que. to Ont., and southw.; commonest in the AUeghenies. Var. minor Boott. Erect, very slender; spikes 3-10-flowered ; perigynia ascending. — Local, s. Me. to Mich. 42. C. retrofl^xa Muhl. Similar; stiff, 1-6 dm. high; spikes 3-8, mostly aggregated, the lower 1 or 2 slightly separated and commonly subtended by a conspicuous bract, often 896. C. retroflexa brownish; perigynium ovoid, smooth throughout, very promi- nently corky and swollen at the base, at maturity widely spread- ing ; scales brownish and sharp, at length deciduous. ( C. rosea, var. Torr.) — Dry open woods, Mass. to Ont. and Tex. May, June. Pig. 396. Var. tex6nsis (Torr.) Fernald. Spikes 3-5; perigynium lance- ovoid or lance-subulate. (C. rosea, var. Torr. • C. texensis Bailey.) — Ky. to Mo., and southw. 43. C. mukicIta L. Culm dm. high, rough, longer than the narrow leaves; spikes 5-10, variously disposed, but usually some of them scattered, frequently all aggre- gated, rarely tawny; perigynium heavy, ovate, 4-6 mm. long, shining, nerveless, the long beak minutely rough, spreading, a little longer than t
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