CHAP. I. 



DOGSTAIL AND FESCUE GRASSES. 



899 



attenuated form, and its bright yellow colouring. The usual impurities 

 are seeds of Yorkshire fog, sheep's fescue, and blue moor-grass. 



The FESCUES (Festuca). These comprise an important group of 

 grasses, several of which are of recognised agricultural value. For 



Fig. 382. Dogstail. 



Cynosurus cristatus. 



our purpose they may conveniently be divided into the broad-leave 

 fescues and the narrow-leaved fescues. 



I 



Nat. size. 



Fig. 383." Seed " of 

 Cynosurus cristatus 



(Crested Dogstail). 



Front and side views, 

 magnified 10 diameters. 



Fig. 384. Tall Fescue. 



Festuca elatior. 



The broad-leaved forms include MEADOW FESCUE (Festuca pratensis, 

 Huds.), TALL FESCUE (Festuca elatior, L.), and SPIKED FESCUE (Festuca 

 loliacea, Huds.). They are all, however, modifications of one type, and 

 that type is best represented by meadow fescue (fig. 387), which is a 



3 M 2 



