GRAMINE^. (grass FAMILY.) 627 



rootstocks ; the spikelets panicled. (Name from y\vKep6s, sweet, in allusion to 

 the taste of the grain.) 



§ 1. GLYCERIA proper. I/>wer palet conspicuously nerved: styles present: 

 plumes of the stigma brandied or toothed: grain grooved on the inner side: 

 leaves flat, the sheaths nearly entire. 



# Spikelets ovate, oblong, or linear-oblong, l"-3" in length, 

 •I- At length nodding in an open panicle, flattish laterally but turgid. 



1. G. Canadensis, Triu. (Rattlesnake-Grasb.) Panicle oblong- 

 pyramidal, at length drooping ; spikelets ovate, at length very broad and tu- 

 mid, Briza-like, 2" long, pale, with purplish glumes ; lower palet acute or blunt- 

 pointed, firm, with not very prominent nerves, longer than the rounded upper 

 one; culm stout, 2° -3° high; leaves long, roughish. (Briza Canadensis, 

 Michx. — Bogs and wet places : common from Penn. northward. July. 



^- ^- Erect in a narrow contracted panicle, somewhat flattened and turgid. 



2. G. Obttisa, Trin. Panicle nairowly oblong, dense ; (3' -5' long); spike- 

 lets 6-7-flowered; 2" -3' long; lower palet obtuse; culm stout, l°-2° high, 

 very leafy; leaves long, smooth. (Poa obtasa, Muhl.) — Bogs, E. New Eng- 

 land to Penn., near the coast. 



3. G. elong^ta, Trin. Panicle narrowly racemose, elongated {1° long), 

 recurving ; the branches and 3 - 4-flowered spikelets appressed ; lower palet ob- 

 tuse; leaves very long (1° or more), rough. (Poa elongata, Torr.) — Wet 

 woods, New England to Michigan, and northward. July- Aug. 



H- -I- -I- Diffuse : lower palet truncate-obtuse, prominently 1 -nerved ; upper 2-toothed. 



4. G. nerv&ta, Trin. (Fowl-Meadow Grass, in part.) Branches of 

 the loose panicle capillary, at length drooping, the very numerous small spikelets 

 ovate-oblong, 3 - 7-tiowered ; leaves rather long. (Poa nervata, Willd. P. stri- 

 ata, Michx. P. parviflora, Pursh.) — Moist meadows : very common. June. 



— Culm erect, l°-3° high. Spikelets l"-2" long, commonly purplish. 



5. G. pallida, Trin. 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) ; lower palet minutely 5-ioothed ; the upper lanceolate, 

 conspicuously 2-toothed; leaves short, sharp-pointed, pale. (Windsoria pallida 

 & Poa dentkta, Torr.) — Shallow water : common, especially northward. July. 



— Culms slender, l°-3° long, ascending from a creeping base. 



6. G. aqu&tica, Smith. (Reed Meadow-Grass.) Panicle much branched, 

 ample (8' - 15' long) ; the numerous branches ascending, spreading with age ; spikelets 

 oblong or linear-oblong, 5-9-flowered (usually purplish, 2" -3" long); lower palet 

 entire ; leaves large ( 1 ° - 2° long, J ' to J ' wide. — Wet grounds : common north- 

 ward. July. — Culm stout, upright, 3° - 5° high. (Eu. ) 



♦ * Spikelets linear (J'-l' long), pole, appressed on the branches of the long and 

 nairow racemose panicle, terete except during anthesis : palets minutely roughish, 

 the upper 2-toothed : squamuloe unilateral or united : ligule long : ctiklk flattened 

 (l°-5° high), ascending from a rooting base. (Glyceria, R. Br.) 



7. G. fltlitans, E. Br. Spikelets 7 -13-flowered; fewer ;)afe<oWonj,o6toe, 

 or the scarious tip acutish, entire or obscurely 3-Iobed, usually rather longer 



