54 



Botanical Secti 



on 



[I'T I 



A. junceum, Beauv., is a sea-shore variety of A. repens. Its 

 leaf-blades are rigid and glaucous, and the lower ones are rolled 

 and pointed. 



Agropyrumrw* mum, Beauv. (Bearded Wheat-grass.) (Fig. 28.) 



Though frequent in Britain this species is very much less 



common that A. repens from which it differs mainly in the following 



respects: it is a tufted perennial, without rhizomes: the empty 



glumes are usually only 3-nerved ; the outer palea has a terminal 



■- 





'■< %t~ 



\ 



■ a 



Fig. 33. Agrostis alba, L. var. repens showing creeping rhizomes. 



awn longer than itself, and the rachilla of the "seed" is hairy. 

 Fig. 30. It is a shade species. 



Agrostis. British members of this genus may be identified 

 by the delicate spreading panicle; the very small one -flowered 

 s pikelets, and the empty glumes exceeding the length oj the palece. 



Agrostis alba, L., var. stolonifera. (Fiorin or Creeping Bent- 

 grass.) Fig. 32. Abundant in Britain. See also p. 134. 



An entirely glabrous perennial, with numerous creeping surface 

 stolons, rooting at the lower nodes. Sheaths split ; blades rolled in 



