2. G. obtùsa, Trin. Culm stout, 1–2° high, very leafy; leaves long, smooth; panicle narrowly oblong, dense (3–5´ long); spikelets 3–7-flowered, 2–3´´ long; flowering glume obtuse.—Bogs, E. New Eng. to Penn. and southward, near the coast.
3. G. elongàta, Trin. Leaves very long (1° or more), rough; panicle narrowly racemose, elongated (1° long), recurving; the branches and 3–4-flowered spikelets appressed; flowering glume obtuse.—Wet woods, N. Eng. to Mich., Minn., and northward; Roan Mt., N. C. (Scribner). July–Aug.
[+][+][+] Diffuse; flower-glume truncate-obtuse, strongly 7-nerved; palet 2-toothed.
4. G. nervàta, Trin. (Fowl Meadow-Grass.) ([Pl. 10], fig. 1–3.) Culm erect, 1–3° high; leaves rather long; branches of the loose panicle capillary, at length drooping, the numerous small spikelets (1–2´´ long, commonly purplish) ovate-oblong, 3–7-flowered.—Moist meadows; common. June.
5. G. pállida, Trin. Culms slender, 1–3° long, ascending from a creeping base; leaves short, sharp-pointed, pale; branches of the rather simple panicle slender, erect-spreading, rough; the spikelets usually few, somewhat appressed, oblong-linear, 5–9-flowered (pale, 2–3´´ long); flowering glume minutely 5-toothed; the palet lanceolate, conspicuously 2-toothed.—Shallow water; Maine to Va., west to Ky., Ind., and Mich.; common, especially northward. July.
6. G. grándis, Watson. (Reed Meadow-Grass.) Culm stout, upright, 3–5° high; leaves large (1–2° long, {1/3}–½´ wide); panicle much branched, ample (8–15´ long), the numerous branches ascending, spreading with age; spikelets oblong or linear-oblong, 3–6-flowered (usually purplish, 2–3´´ long); flowering glume entire. (G. aquatica of Amer. authors.)—Wet grounds; N. Eng. to western N. Y., Mich., Minn., and westward.
[*][*] Spikelets linear (½–1´ long), pale, appressed on the branches of the long narrow racemose panicle, terete except during anthesis; palets minutely roughish, the upper 2-toothed; squamulæ unilateral or united; ligule long; culm flattened (1–5° high), ascending from a rooting base. (Glyceria, R. Br.)
7. G. flùitans, R. Br. Panicle 1° long; the simple branches appressed, finally spreading below; leaves short and rather broad, very smooth; spikelets 7–13-flowered; flowering glume oblong, obtuse, or the scarious tip acutish, entire or obscurely 3-lobed, usually rather longer than the blunt palet.—Shallow water; common. June–Aug.
8. G. acutiflòra, Torr. Spikelets 5–12-flowered, few and scattered; flowering glume oblong-lanceolate, acute, shorter than the long tapering point of the palet.—Wet places, Penn. to Maine; rather rare. June.—Resembles the last; but the erect leaves smaller, the separate flowers twice the length (4´´ long), and less nerved.
68. PUCCINÉLLIA, Parl. ([Pl. 16.])