Pl.end.ph. 10. GRAMTNE^. 61. Zerna. 117 



3. Zerna asper. Rough drank. 

 Panicle drooping, loose | peduncles very long, in pairs, 



facing one way; locustce compressed, pubescent; Jlowrets 

 becoming remote ; bristle straight, shorter than the glume ; 

 leaves villose, rough. 



Festuca avenacea q. Gramen avenaceum duinetonim panicula sparsa, 

 Jiaii Sj/n. 415, 10. 



Bromus asper, Lin. Suppl. 111. 

 Bromus ramosus, Lin. Syd. Veg. ed. 13, 10?. 

 Bromus nepioralis, .Hnds. FLAng. 51. 

 Bromus hirsutus, Curlis Fl. Loud. S. 

 Bromus uemorosus, Vill. Dauph. 2, 117. 

 Bromus altissimus, Web. IJolsat. 94. 

 Bromus montanus. Scop. Cam. 117. 

 Schedonorus asper, Gaud. Fl. Ilelv. JUS'S. 



Moist woods ; annual or biennial ; July. 



Rooi fibrous, horizontal ; culm firm, upright, 3 feet high ; 

 k7iots blackish ; hairs short, deflexed ; leaves flat, broad ; 

 sheaths rough ; ligula short, torn ; loaistoe green, or green 

 and purple, 7 or 9-flowered, hanging, 



4. Zerna sterilis. Barren drank. 

 Panicle spreading, drooping at top ; peduncles semiverti- 



cillate, mostly simple; locustce oblong, rough; Jlowrets 



becoming remote ; bristle straight, longer than the glume ; 



leaves pubescent. 



Festuca ayenacea sterilis elatior, seu Bromos Dioscorides, Rati Syn, 

 412, 1. 



Bromus sterilis, Lin. S. P. 113. 

 Bromus grand! florus, Weig. Obs, 9,. 

 Bromus distichus, Moench Meth. 192. 

 Avena sterilis, Salisb. Prod. 22. 



Fields and hedges; annual; June and July. 



Root fibrous ; culm 3 feet high, upright, smooth ; leaves^ 

 flaccid, soft, hair}' at bottom ; sheaths pubescent, hairs de- 

 flexed; ligula short, blunt; panicle a foot long, loose; 

 locustce hanging, green, 



5. Zerna Madritensis. Madrid drank. 

 Panicle upright, rather spreading; peduncles simple, in 



bundles ; locustce oblong, rough ; Jlowrets becoming re- 

 mote; stamens 2; bristles straight, not so long as the 

 glume; leaves h&lA. 



Festuca avenacea sterilis, paniculis confertis erectioribiis, aristis bre« 

 vioribus, Rait Syn. ed. 2,261, omitted in the 3d edition. 



Bromus Madritensis, Lin. S. P. 114. 



Festuca Madritensis, Dssfart. Atlant. 1,91. 



Bromus diandrus, Curlis Fl. Lend. 6, 5. 



Bromus gynandrus, Roth Cat. 1,15. 



Bromus muralis, Hudson Fl. Angl.bO. 



Bromus ciliatus, Hudson ed. 1, 40. 



