10b. Blade flat, 2 to 3 mm. wide 

 22. Eragrostis pectinacea — Pink Lovegrass 



Leaves rolled in bud-shoot; sheath round, smooth, sometimes long 

 hairy at top, split with overlapping margins; auricles absent; collar 

 medium broad to narrow, sometimes divided ; ligule a fringe of hairs, .2 

 to .4 mm. long; blade 2 to 3 mm. wide, smooth to rough above, smooth 

 below, margins at least slightly rough. Inflorescence — a delicate, open 

 panicle. Throughout. Fields, open ground and waste places. 



1 1 a. Sheath not hairy 



lib. Sheath with a tuft of hairs at throat 



12 



23. Danthonia spicata — Poverty Oatgrass 



Leaves folded in bud-shoot; sheath round to somewhat flattened, 

 smooth with a tuft of hairs at throat, split with overlapping hyaline mar- 

 gins; auricles absent; collar medium broad, indistinct, hairy on margins; 

 ligule a fringe of hairs, .2 to .3 mm. long; blade 2 to 3 mm. wide, rough 

 above, smooth below, margins rough and hyaline. Inflorescence — a nar- 

 row panicle with stiff, short branches bearing one spikelet. Common 

 throughout. Dry and sterile or rocky soil. 



12a. Collar narrow, continuous 



24. Eragrostis poaeoides — Low Lovegrass 



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

 ping hyaline margins; auricles absent; collar narrow, hairy on margins; 

 ligule a fringe of hairs about .2 mm. long; blade 1.5 to 2.5 mm. wide, 

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

 an erect, open panicle. Throughout, not common. Waste places. 



12b. Collar broad, divided 



25. Sporobolus vaginiflorus — Dropseed 



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

 lapping hyaline margins; auricles absent; collar broad, divided, hairy 

 on margins; ligule a minute fringe of hairs; blade 1.5 to 2.5 mm. wide, 

 smooth above and below, margins slightly rough. Inflorescence — a short, 

 slender panicle. Throughout. Sandy soil or open waste ground. 



13a. Low plants growing in dense colonies at edges of brackish 

 marshes and streams 



26. Distichlis spicata — Seashore Saltgrass 



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

 ping hyaline margins; auricles absent; collar narrow to broad, may be 

 hairy on margins; ligule membranous, about .2 mm. long; blade 2 to 3 

 mm. wide, smooth above and below and on margins, frequently bristle- 

 like. Inflorescence — a pale or greenish, short, condensed panicle. Maine 

 south. Seashores, forming dense colonies. 



13b. Plants not growing as above 14 



14 



