MANUAL OF THE GRASSES OF THE UNITED STATES 



89 



Figure 99.- — Glyceria canadensis. Panicle, X 1; floret, X 10. (Kneucker, Gram. 464, Conn.) 



14. Glyceria striata (Lam.) Hitchc. 

 Fowl mannagrass. (Fig. 100.) Plants 

 in large tussocks, pale green; culms 

 erect, slender, rather firm, 30 to 100 

 cm. tall, sometimes taller; blades 

 erect or ascending, flat or folded, 

 moderately firm, usually 2 to 6 mm. 

 wide, sometimes to 9 mm.; panicle 

 ovoid, open, 10 to 20 cm. long, nod- 

 ding, the branches ascending at base, 

 drooping, naked below; spikelets 

 ovate or oblong, 3- to 7-flowered, 3 to 

 4 mm. long, often purplish, somewhat 

 crowded toward the ends of the 

 branchlets; glumes about 0.5 and 1 

 mm. long, ovate, obtuse; lemmas ob- 

 long, prominently 7-nerved, about 2 

 mm. long, the scarious tip inconspicu- 

 ous; palea rather firm, about as long 

 as the lemma, the smooth keels promi- 

 nent, bowed out. % (G. nervata 

 Trin.) — Moist meadows and wet 

 places, Newfoundland to British Col- 

 umbia, south to northern Florida, 

 Texas, Arizona, and northern Califor- 

 nia; Mexico. A low strict northern form 



has been called G. striata var. stricta 

 Fernald (6r. nervata var. stricta 

 Scribn.) 



15. Glyceria elata (Nash) Hitchc. 

 Tall mannagrass. (Fig. 101.) Re- 

 sembling G. striata; plants dark 

 green; culms 1 to 2 m. tall, rather 

 succulent; blades flat, thin, lax, 6 to 

 12 mm. wide; panicle oblong, 15 to 

 30 cm. long, the branches spreading, 

 the lower often reflexed; spikelets 6- 

 to 8-flowered, 4 to 6 mm. long; glumes 

 and lemmas a little longer than in G. 

 striata. % (Panicularia nervata 

 elata Piper.) — Wet meadows, springs, 

 and shady moist woods, Montana to 

 British Columbia, south in the moun- 

 tains to New Mexico and California. 



16. Glyceria erecta Hitchc. (Fig. 

 102.) Culms 10 to 40 cm. tall, some- 

 times in dense tufts, from slender 

 fragile rhizomes; blades flat, mostly 

 5 to 12 cm. long, 4 to 9 mm. wide, 

 often equaling the panicle or exceed- 

 ing it; panicle 3 to 8 cm. long, with 

 ascending or appressed few-flowered 



