. 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. 220 CYPERACEAE (SEDGE l^AMILY) 357. 0. hO[-m., V. invisa. elongate-ovate, ascending or rarely spreading, distinctly about lO- nerved on each face; scales lance-attentuate or aristate. (C. straminea. Tar. uperta Boott; C. tenera Britton, not Dewey.) — Fresh or brackish marshes, commonest near the coast, e. Que. to Del. and la. ; B. C. June-Aug. Fig. 356.—Lower small-spiked (5-8 mm. long) plants have been separated as var. intisa (W. Boott) Fernal


. 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. 220 CYPERACEAE (SEDGE l^AMILY) 357. 0. hO[-m., V. invisa. elongate-ovate, ascending or rarely spreading, distinctly about lO- nerved on each face; scales lance-attentuate or aristate. (C. straminea. Tar. uperta Boott; C. tenera Britton, not Dewey.) — Fresh or brackish marshes, commonest near the coast, e. Que. to Del. and la. ; B. C. June-Aug. Fig. 356.—Lower small-spiked (5-8 mm. long) plants have been separated as var. intisa (W. Boott) Fernald. Fig. 357. Var. Richii Fernald. Perigynia 4-5 mm. long, with suhorbicular bodies abruptly contracted to con- spicuous loosely ascending or spreading tips. (O. tenera, var. Fernald.) —Mass. to D. C. Fig. 358. 13. C. BicknfiUii Britton. Culms comparatively stout, 4-9 dm. high, smooth except at sumnrit; leaves and perigynium. ather short and firm, mm. broad ; 858. C. horm , * V. Richii. TeriuiDal spilie. 359. C. BiolcnellU. ascending, rather i inflorescence of 3-7 silvery-brown or greenish ovoid, obovoid or subglobose approximate or slightly remote spikes (8-1-1 mm. long) ; perigynia ascending, trith broadly ovate or suborbl- ntlar bodies, the tips becoming conspicuous, broadly viing-mar- gined, when mature becoming almost translucent and about 10- nerved on each face. (C. stra- minea, var. Craioei Boott.) — Dry or rocky soil. Me. to Man., N. J., 0., and Ark. — May-July. Fig. 359. 14. C. sillcea Olney. Culms slender, stiff, 3-8 dm. high ; leaves erectish, usually glaucous, mm. wide, often becoming involute; inflorescence of 3-12 usually remote conic-ovoid and clavatC' based whitish spil-es ( cm. long) ; perigynia firm and opaque, 4-5 mm. long, mm. broad, short-beaked, broad-winged, the body distinctly S-b-nerved on the inner, Q-\2-nei-ved on the outer face. (C. foenea, var. subu- lonum Gray.)—Sands and rocks near the sea. Gulf of St. Law- rence


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