7b. Collar not hairy 8 



liffig} 



il 



mm 



m 



9 



mm 



Mfi 

 il 





BR 



8a. Sheath smooth or sparsely hairy 



129. Bromus secalinus — Cheat 



Leaves rolled in bud-shoot; sheath round, mostly smooth but some- 

 times sparsely hairy, closed to near top ; auricles absent ; collar narrow to 

 medium broad, divided; ligule membranous, 1.2 to 2.5 mm. long, 

 rounded, toothed; blade 5 to 10 mm. wide, mostly hairy above and below 

 but occasionally smooth, margins rough or short hairy. Inflorescence — 

 an open panicle. Throughout. Not common in southern part. Grain 

 fields and waste places. 



8b. Sheath evenly hairy 



130. Bromus commutatus — Hairy Cheat 



Leaves rolled in bud-shoot; sheath round, short hairy, closed to near 

 top ; auricles absent ; collar narrow to broad, divided ; ligule membranous, 

 mostly 1 to 2 mm. long but at times to 3 mm., rounded, toothed; blade 

 mostly 5 to 10 mm. wide but occasionally to 12 mm., hairy above and 

 below and on margins. Inflorescence — an open panicle. Throughout. 

 Common in southern part. Fields and waste places. 



9a. Ligule not more than 1.5 mm. long 10 



9b. Ligule more than 1 .5 mm. long 1 ' 



Mm 



4 ' I 1 ' IT 



limit mm 



m 



■■'lll'llh' 



ftp 



10a. Collar hairy at least on margins 



131. Bromus japonicus — Japanese Chess 



Leaves rolled in bud-shoot; sheath round, densely soft white hairy, 

 closed to near top; auricles absent; collar mostly narrow and divided, 

 generally hairy at least on margins; ligule membranous, mostly .8 to 1.5 

 mm. long but occasionally longer, rounded and toothed, sometimes cili- 

 ate ; blade mostly to 6 to 8 mm. wide, dense hairy above and below, mar- 

 gins generally hairy. Inflorescence — open, diffuse, somewhat drooping 

 panicle. Vermont south. Common. Waste places. 



10b. Collar not hairy 



1 32. Bromus mollis — Soft Chess 



Leaves rolled in bud-shoot; sheath round, densely soft white hairy, 

 closed to near top ; auricles absent ; collar narrow, divided ; ligule mem- 

 branous, .6 to 1.5 mm. long, rounded, toothed; blade 5 to 9 mm. wide, 

 hairy above and below and on margins. Inflorescence — an erect, con- 

 tracted, crowded panicle. Throughout. Not common. Waste places and 

 cultivated soil. 



40 



