. 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. cylindric, (rarely 10) mm. long, in glomerules of 10-30 ; scales mm. lung; bristles sparsely and strongly barbed, nearly straight, as long as the conspicuously pointed and obovoid-oblong trigonous achene. — IMeadows and bogs. Me. to Sask., s. to Ga. and Mo. Fr. late July, Aug. Fig. 298. Var. pycsocephalds Fernald. Rays abbreviated ; glomerules crowded in a dense irregular liead. —Flats of the Mohawk K., N. Y., local {Haberer). 26. S.
. 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. cylindric, (rarely 10) mm. long, in glomerules of 10-30 ; scales mm. lung; bristles sparsely and strongly barbed, nearly straight, as long as the conspicuously pointed and obovoid-oblong trigonous achene. — IMeadows and bogs. Me. to Sask., s. to Ga. and Mo. Fr. late July, Aug. Fig. 298. Var. pycsocephalds Fernald. Rays abbreviated ; glomerules crowded in a dense irregular liead. —Flats of the Mohawk K., N. Y., local {Haberer). 26. S. pAUidus (Brittoii) Fernald. Similar ; leaves very pale; spikelets pale brown, very numerous in irregular glomerules ; scales 2-3 mm. long, with the conspicuous pale midribs prolonged into long .letulose awns. (jS'. atrovirens, -emMjmsejmp' '^^^- Britton.) — Man. to Kan. and the Rocky , /V ^Mf^ Mts. Fr. July. Fig. 299. A «» fiPrilll > 27. S. georgijlnus Harper. Slender, 3-12 " .,„„ „ . dm. high, bright green ; leaves smooth, rarely oqo s mDiHna nodulose below, numerous, crowded at base, cm. broad, the ribs mm. apart; spikelets 2-4 mm. long, numerous in the glomerules; the greenish-brown or rufescent scales mucronate, mm. long, slightly exceeding the ellipsoid achenes. — Que. to Mich., Ga., and Ark. Fr. July. — Occasionally proliferous. 28. S. polyphyllus Vahl. Culm usually very leafy; spikelets yellow-brown or reddish, ovoid, mm. long, clustered 3-8 together in small heads on the short ultimate divisions of the open decompound umbel; scales rounded, mucronate, mm. long, about equaling the broadly obovoid short-tipped achene; bristles 6, usually twice bent, about twice the length of the achene. — Swamps and borders of ponds, w. N. E. to Ga., w. to Minn, and Ark. July-Sept. — Often proliferous. Fig. 300. Var. macros- .,„„ ^ , , „ TACHTS Boeckl. Spikelets oylindric, 5-8 mm. long. — 300. S. polypbyllus. j^^^^,_
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