10. GRAMINEJE. 61. Zerna. 
117 
PI. end. ph . 
3. Zerna asper. Roitgh drank. 
Panicle drooping, loose ; peduncles very long, in pairs, 
feeing one way; locustce compressed, pubescent; jlowrets 
becoming remote; bristle straight, shorter than the glume; 
leaves villose, rough. 
Festuca avenacea q. Gramen avenaceum dumetoriun panicula sparsa, 
Rail Syn. 415, 10. 
Bromus asper, Lin. Suppl. 111. 
Bromus ramosus, Lin. Syst. Veg. ed. 13, 102. 
Bromus nemoralis, Huds. Fl.Ang. 51.. 
Bromus liirsutus, Curtis FI. Lond. 8. 
Bromus nemorosus, Fill. Dauph. 2, 117. 
Bromus altissimus, Web. Ilolsat. 94. 
Bromus montanus, Scop. Cam. 117. 
Schedonorus asper, Gaud. FI. Helv. MSS. 
Moist woods; annual or biennial ; July. 
Root fibrous, horizontal ; culm firm, upright, 3 feet high ; 
knots blackish ; hairs short, deflexed ; leaves flat, broad ; 
sheaths rough ; ligula short, torn ; locustce 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 avenacea sterilis eiatior, seu Bromos Dioscorides, Raii Syn , 
412, 1. 
Bromus sterilis, Lin. S. P. 113. 
Bromus grandiflorus, 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, hairy at bottom ; sheaths pubescent, hairs de~ 
flexed; ligu.la 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 bald. 
Festuca avenacea sterilis, paniculis confertis erectioribus, aristis bre* 
vioribus, Raii Syn. ed. 2,261, omitted in the 3d edition. 
Bromus Madritensis, Lin. S. P. 114. 
Festuca Madritensis, Desfart. Atlant. 1,91. 
Bromus diandrus, Curtis FI. Lond. 6,5. 
Bromus gynandrus, Roth Cat. 1, 15. 
Bromus muralis, Hudson FI. Angl.5Q. 
Bromus ciliatus, Hudson ed. 1, 40, 
