NOTES ON GROUP X. 



1. Wood Grasses. These are distinguished thus : 



Eared. 



Blades firm. 



Blade taper-based : keel white and prominent Bromus asper. 



Blade not taper-based Hordeum sylvaticum. 



See Note 4, Group XI. 

 Blades remarkably thin and dry, hair sparse. 



Triticum caninum. 



Not Eared. 

 Sheath round. 



Ligule long- toothed Brachypodium sylvaticum. 



Ligule remarkably short Triticum caninum. 



Sheath entire Annual bromes. 



Sheath quadrangular Melica. 



2. Brachypodium. 



sylvaticum. pinnatum. 



Ligule Toothed (X. 1 8). With a fringe of hair 



^ (X. 19). 



Blade Remarkably thin and dry, Firm, and erect. 



hanging. 

 Habitat Woods. Heaths. 



3. Koeleria. Glaucous and hairless varieties may occur. 



4. Triticum. Sea-shore varieties and species have 

 firm blades, and the ribs more prominent. 



5. Hordeum. 



Perennial. Annual. 



Blade Firm . Very thin and dry. 



Shoots Some barren, some fertile. All fertile. 



Perennial Species. 

 Hordeum sylvaticum. I Hordeum pratense. 



Habitat Woods. I Meadows. 



Annual Species. 

 Hordeum murinum. Hordeum maritimum. 



Blade Very thin and dry, Narrower, thicker, and 



firmer. 

 Habitat... .i Roadsides and fields. Sea-shore. 



