92 AWNS [oh. 



(e.g. Melica) or membranous or stiff, or scarious (i.e. 

 browned, as if scorched) at the edges. In Hordeum 

 some of the glumes are so narrow and pointed as to 

 resemble stiff awns. In Gatabrosa the glumes are trun- 

 cate, as if bitten off at the top. 



The PalecB are also often more or less boat-shaped, or 

 flat ovate or oblong scales, usually more delicate than the 

 glumes and frequently pointed, or (especially the outer 

 pale) awned at the tip : in some cases, however, the awn 

 springs from the middle or base of the back of the pale, 

 and the latter may be bifid at its apex. The pale has 

 usually a distinct middle nerve. The inner pal(^ is com- 

 monly the smaller and more delicate of the two, and is 

 sometimes difficult to see. 



Conspicuously awned Grasses. 



Avena. Agropyrwrn caninwm. 



Arrhenatkerum (Fig. 33). Lolium temulentum. 



Em-deum. Brachypodium sylvatioum. 



Bromus. Festuca Myurus. 



And a few rare grasses like Panicum, Polypogon, Lagurus. 

 Grasses with no true awns. 



And a few rare forms like Leersia, Hierochloe, &C; 



