. 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. CYPEEACEAE (SEDGE FAMILY) 197 straw-culur to reddish-brown; achenes mm. long; bristles whitish {E. yracile, var, paucinervmim Engelm.; E. paucinervium, A. A. Eaton.) — Swamps and bogs, Nfd. to Out., s. to N. J. and 111, Er. July, Aug. G. E. angustlfblium Koth. Culms 2-0 dm. high, slender, obtusely angled ; basal leaves broad, condupUcate above the middle ; cauline leaves few, stiff, flat at base, cm. long, mm. broad, scabrous
. 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. CYPEEACEAE (SEDGE FAMILY) 197 straw-culur to reddish-brown; achenes mm. long; bristles whitish {E. yracile, var, paucinervmim Engelm.; E. paucinervium, A. A. Eaton.) — Swamps and bogs, Nfd. to Out., s. to N. J. and 111, Er. July, Aug. G. E. angustlfblium Koth. Culms 2-0 dm. high, slender, obtusely angled ; basal leaves broad, condupUcate above the middle ; cauline leaves few, stiff, flat at base, cm. long, mm. broad, scabrous on the margins; spikelets 2-10, mostly on stout glabrous or glabrate peduncles ( cm. long), in anthesis ovoid, 1-2 cm. long, in fruit' cm. long; scales lead-color to castaneous, 4-10 mm. long, the nerveless tip membranous; anthers mm. long; achenes mm. long; bristles bright white. (E. polystachion L., in part.) — Cold bogs, Arctic Am., s. to Nfd., N. S., N. B., Me., L. Superior, etc. Fr. June, July. (Eurasia.) Var. mXjus Schultz. Stout and tall (3-9 dm.) ; the leaves 4-8 mm. broad. — South to Me., Ont., 111., Wise, la., etc. (Eurasia.) 7. E. viridi-carinHtum (Engelm.) Fernald. Culms 2-9 dm. high ; leavet flat except at tip, 2-0 mm. wide ; spikelets 3-30, on slender simple or forked minutely hairy peduncles, in anthesis slender-ovoid, 6-10 mm. long, in frtdt cm. long ; scales greenish-drab to lead-color, the prominent often scabrous midrib extending to the tip ; anthers mm. long; bristles whitish or pale buff. {E. polystachion of most Am. authors.) —Bogs and wet meadows, Nfd. to Sask. and B. C, s. to Ct., N. Y., 0., Mich., Wis., and said to extend to Ga. Fr. May-Aug. Var. Fei,l6wsii Fernald. Spikelets all sessile. — Local, Me. and Mass. 8. E. virginicum L. Culms loiry, terete below, trigonous above, smooth, 4-12 dm. high ; leaves flat, stiff, elongate-linear, with close she<iths, the upper- most dm. long, mm. wide
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