MANUAL OF THE GRASSES OF THE UNITED STATES 



91 



Figure 101.— Glycerin data. Plant, X 1; floret, X 10. 

 (Hitchcock 2731, Calif.) 



branches; spikelets 3 to 4.5 mm. long; 

 second glume 3-nerved; lemmas 2.5 to 

 3 mm. long, scaberulous, the tip 

 somewhat erose. % — Springy or 

 boggy places, mostly near or above 

 timber line, Crater Lake, Oreg., to 

 Mount Whitney, Calif., and Glen- 

 brook, Nev. 



17. Glyceria pauciflora Presl. 

 (Fig. 103.) Culms 50 to 120 cm. tall; 

 sheaths open, smooth or scaberulous, 

 sometimes inflated in floating plants; 

 blades thin, flat, lax, scaberulous, 

 mostly 10 to 15 cm. long, 5 to 15 mm. 

 wide; panicle open or rather dense, 

 nodding, 10 to 20 cm. long, the 

 branches ascending or spreading, 

 rather flexuous, the spikelets crowded 

 on the upper half, the lowermost usu- 

 ally 2 to 4; spikelets mostly 5- or 6- 

 flowered, 4 to 5 mm. long, often pur- 

 plish; glumes broadly ovate or oval, 

 about 1 and 1.5 mm. long, the margins 

 erose-scarious, the second 3-nerved; 

 lemmas oblong, 2 to 2.5 mm. long, 



Figure 102. — Glyceria erecta. Panicle, X 1; floret, 

 X 10. (Hitchcock 3059, Oreg.) 



with 5 prominent nerves and an 

 outer short faint pair near the mar- 

 gins, scaberulous on the nerves and 

 somewhat so between them, the tip 

 rounded, scarious, somewhat erose. 

 91 — Shallow water, marshes and 

 wet meadows, Alaska to South Da- 

 kota, south to California and New 



Figure 103. — Glyceria pauciflora. Panicle, X 1 ; floret, 

 X 10. (Sandberg, Heller, and McDougal 636, 

 Idaho.) 



