164 



CLASSIFICATION OF 



[CH. 



A Palea scaherulous or hairy, awn from half to 

 about its own length. 

 Bromus erectus. 

 B. asper. 



Bromus erectus, Huds. 



Palea with 5 — 7 scaberulous ribs, but not hairy, flat 

 above, incurved below, so that the inner palea is clearly 



Fig. 71. Bromus asper, a barge- 

 shaped "seed" with terminal 

 awn, nat. size and x about 5. 

 Cf. Fig. 50. Stebler. 



Fig. 72, Braclnjpodium sylvati- 

 cum, a barge-shaped "seed" 

 with terminal awn, natural 

 size and x about 5. Cf. Fig. 

 77. Stebler. 



