. 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. crus-corvi. 414. C. arenaria. of the inconspicuous scale. — Swamps and bottoms, Ind. to Minn., Neb., and soutliw.; rare nortliw. June, July. Fig. 413. 58. C. arenAria L. Extensively creeping, dm. high; leaves very narrow and very long-pointed, shorter than the culm; head dense or some- times interrupted, ovoid or cylindric ; spikes few to many, those at the apex of the head usually staminate, the intermediate ones staminate at the summit,
. 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. crus-corvi. 414. C. arenaria. of the inconspicuous scale. — Swamps and bottoms, Ind. to Minn., Neb., and soutliw.; rare nortliw. June, July. Fig. 413. 58. C. arenAria L. Extensively creeping, dm. high; leaves very narrow and very long-pointed, shorter than the culm; head dense or some- times interrupted, ovoid or cylindric ; spikes few to many, those at the apex of the head usually staminate, the intermediate ones staminate at the summit, the lowest entirely pistillate and subtended by a bract 1-3 cm. long; perigynium very strongly nerved on both faces, wing- margined above, sharply long-toothed, about the length of the brown subulate-acuminate scale. — Sea-beaches near Nor- folk, Va. (Nat. from Eu.) Fig. 414. 59. C. SartwSIlii Dewey. Culms stiff and strict, m. high, from an elongate dark rootstock; leaves (2-5 mm. wide) produced into a long slender point, mostly shorter than the culm ; staminate flowers variously disposed, frequently vrhole spikes being sterile; head cm. long and rather narrow, the individual spikes usually clearly defined, or occasionally the head interrupted below, tawny-brown; perigynium 3-5 mm. long, elliptic or lance-elliptic, nerved on both sides, very gradu- ally contracted into a short beak; scale blunt, smooth, hyaline- edged, about the length of the perigynium. —Bogs, centr. N. Y. to B. C, s. to O., 111., la., S. Dak., etc. June, July. Fig. 415. 60. C. stenophylla Wahlenb. Stiff, tufted, dm. high; leaves pale, involute and shorter than the culm; perigynium ovate, gradually contracted into a short and entire rough-edged beak, tightly inclosing the achene, at maturity longer than the hyaline acutish scale. — Dry grounds, n. the Rocky Mts., and northw. June, July. (Eurasia.) Fig. 416. 61. C. chordorrhiza Very extensively stoloniferous; culms mostly late
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