92 AWNS [CH. 
(e.g. Melica) or membranous or stiff, or scarious (Le. 
browned, as if scorched) at the edges. In Hordeum 
some of the glumes are so narrow and pointed as to 
resemble stiff awns. In Catabrosa the glumes are trun- 
cate, as if bitten off at the top. 
The Palew 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 pale is com- 
monly the smaller and more delicate of the two, and is 
sometimes difficult to see. 
CONSPICUOUSLY AWNED GRASSES. 
Avena. Agropyrum canmum. 
Arrhenatherum (Fig. 33). Lolium temulentum. 
Hordeum. 7 Brachypodium sylvaticum. 
Bromus. Festuca Myurus. 
And a few rare grasses like Panicum, Polypogon, Lagurus. 
GRASSES WITH NO TRUE AWNS. 
Keleria. Poa. 
Milium. Glyceria. 
Digraphis. Catabrosa. 
Elymus. Molinia. 
Festuca (except F’. Myurus Melica. 
and F’. uniglumiis). Psamma. 
Briza. Agrostis alba. 
And a few rare forms like Leersia, Hierochloe, &c. 
