14a. 



Sheath smooth 



14b. Sheath short hairy 



15 



1 5a. Leaves glaucous, blue-green; plant densely tufted 



27. Festuca ovina — Sheep Fescue 



Leaves folded in bud-shoot; sheath round, short hairy, split with over- 

 lapping margins; auricles absent; collar narrow, indistinct; ligule mem- 

 branous, to .5 mm. long, truncate; blade 1 to 2 mm. wide, bristle-like, 

 rough above, smooth to rough below, margins smooth. Inflorescence— a 

 narrow panicle, sometimes almost spike-like. Throughout. Occasionally 

 cultivated. 



15b. Leaves not glaucous, dark green; plant not densely tufted 



28. Festuca rubra— Red Fescue 



Leaves folded in bud-shoot; sheath round, short hairy, split part-way 

 only; auricles absent; collar narrow, indistinct; ligule membranous, 

 about .5 mm. long, truncate; blade 1.5 to 3 mm. wide, bristle-like, smooth 

 above and below and on margins. Inflorescence— a. narrow, contracted 

 panicle. Common throughout. Lawns, meadows and waste places. 



16a. Collar narrow, leaves mostly bristle-like 

 16b. Collar medium broad, leaves flat 



18 

 17 



17a. Collar hairy 



29. Sporobolus clandestinus— Scratch Dropseed 



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

 ping hyaline margins; auricles absent; collar medium broad, hairy with 

 a few long hairs on margins; ligule membranous, minute; blade to 3 mm. 

 wide, rough above, smooth and glossy below, margins rough and hyaline. 

 Inflorescence— a narrow, contracted panicle. Connecticut south. Sandy 

 fields. 



17b. Collar not hairy 



30. Agrostis tenuis — Colonial Bent 



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

 ping hyaline margins; auricles absent; collar medium broad, may be di- 

 vided; ligule membranous, to .4 mm. long, truncate; blade 1 to 3 mm. 

 wide, flat, smooth to rough above, smooth below at least near base, mar- 

 gins rough and hyaline. Inflorescence— an open, delicate panicle. Com- 

 mon throughout. Pastures, lawns and waste places. 



• 15 



