. 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. CYPERAOEAE (SEDGE FAMILY) 265 C. rotundata. 651. C. Grahami. s. N. B. and oentr. Me. July-Sept. Fig. 550. — Apparently hybridizes with G. vesicarta. 180. C. Grahami Boott. Slender, 2-7 dm. high; leaves flat, mm. wide ; starainate spikes 1-3 ; pistillate 1-3, the lowest mostly short-peduncled, slightly spreading or ascending, cm. long, 6-10 mm. thick ; perigynia straw-oolored, thin, ovoid, 4-5 mm. long, few-neiued, with a slender su
. 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. CYPERAOEAE (SEDGE FAMILY) 265 C. rotundata. 651. C. Grahami. s. N. B. and oentr. Me. July-Sept. Fig. 550. — Apparently hybridizes with G. vesicarta. 180. C. Grahami Boott. Slender, 2-7 dm. high; leaves flat, mm. wide ; starainate spikes 1-3 ; pistillate 1-3, the lowest mostly short-peduncled, slightly spreading or ascending, cm. long, 6-10 mm. thick ; perigynia straw-oolored, thin, ovoid, 4-5 mm. long, few-neiued, with a slender subentire beak, ascending, twice as long as the blunt purple scale. — Margin of a pond, Mt. Katahdin, Me. July, Aug. (Scotland.) Fig. 551. — Much of the American material previ- ously referred to this species is apparently a hybrid between C. saxatilis, var. miliaris and forms of C vesicaria. (C. miliaris, var. aurea Bailey; C. Maeana Britton, not Boott; C. main- ensis Porter.) 181. C. rotundata Wahlenb. Slender, 6 dm. or less high; leaves soon becoming involute; staminate spike 1 (rarely 2 or 3); pistillate 1 or 2, sessile, short and compact, 8-13 mm. long, 6-8 mm. thick, the lower subtended by a divergent bract (4-5 cm. long) ; perigynia pale or ferruginous, plump, sub- globose-ovoid, few-nerved, about 3 mm. long, abruptly short-beaked, the beak entire or short-toothed, one half longer than the purplish scales.—Outlet of Moosehead L., Me. Aug. (Greenl., n. Eu.) Fig. 552. 182. C. vesicaria L. Comparatively slender, m. high; the culms sharply angled and generally harsh above, usually overtopped by the bracts; leaves 4-7 mm. wide, loosely ascending or spreading ; staminate spikes mostly 2 or 3, peduncled ; pistillate spikes 2-3, remote, sessile or short-peduncled, cylindric, 2-7 cm. long, cm. thick; perigynia slightly turgid, ovoid to oblong-conic, gradually tapering to the beak, when mature 7-9 mm. long, twice exceeding the ovate-lanceolate acute or acuminate
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