— ' — — : 7- 



8b. Blade not glossy below ^ 



9a. Ligule 1 to 2 mm. long 



208. Lolium multiflorum — Annual Ryegrass 



Leaves rolled in bud-shoot; sheath round, smooth, split with overlap- 

 ping hyaline margins; auricles small; collar broad, may be divided ; ligule 

 membranous, 1 to 2 mm. long, truncate to rounded ; blade mostly 3 to 7 

 mm. wide (rarely to 10 mm.), smooth above, smooth and glossy below, 

 margins smooth and hyaline. Inflorescence— long, narrow flat spikes 

 with awned spikelets placed edge to rachis. Cultivated throughout. 



9b. Ligule generally less than 1 mm. long 10 



10a. Blade 10 mm. or more wide 



209. Hystrix patula — Bottlebrush 



Leaves rolled in bud-shoot; sheath round, smooth to hairy, split with 

 overlapping margins hyaline or one hairy; auricles small; collar narrow 

 to broad; ligule membranous, .2 to .6 mm. long, truncate to rounded; 

 blade 10 to 25 mm. wide, smooth to rough above and below, keeled and 

 glossy below, margins rough and hyaline. Inflorescence— a loosely flow- 

 ered, bristly, erect or nodding spike. Throughout. Infrequent in moist 

 places. 



10b. Blade less than 10 mm. wide 



210. Festuca clatior — Meadow Fescue 



Leaves rolled in bud-shoot; sheath round, smooth, split with overlap- 

 ping hyaline margins; auricles small; collar broad, mostly divided ; ligule 

 membranous, .2 to 1 mm. long, truncate; blade 3 to 9 mm. wide, smooth 

 to rough above, smooth and glossy below, margins rough. Inflorescence 

 —an erect or nodding, somewhat contracted panicle. Throughout. 

 Meadows and waste places. 



11a. Ligule to at least 1 mm. long 



211. Elymus canadensis— Canada Wild-rye 



Leaves rolled in bud-shoot; sheath round, smooth, split with overlap- 

 ping margins hyaline or one hairy; auricles small; collar broad, divided; 

 ligule membranous, to 1.5 mm. long, truncate, may be toothed and cili- 

 ate; blade 8 to 20 mm. wide, at least slightly rough above, keeled and 

 smooth below at least near base, margins rough. Inflorescence— a dense, 

 bristly, nodding or drooping spike. Massachusetts south. River banks, 

 open ground and sandy soil. 



1 1 b. Ligule less than 1 mm. long 1 2 



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