ij 



ANNUALS AND PERENNIALS 



11 



Annuals 



wliicli nicay become biennial or perennial, 



A lopecurus gen icvlatus. 



Ifordeum pratensc. 



L'diam j^erenne. 



L. italicwn (may be perennial), 



Bwmus asper (may be perennial). 



B. sterilis. 



B. arvensis (may be perennial). 



Perennials. 



Ilolciis lanatus, 



H. mollis. 



iVardus. 



llordevm sylvaticu m, 



Agropyrum. 



Brachypodium. 



Bromus erectvs. 



B. giganteiis. 



Festuca ovina. 



F. elatior. 



F. sylvatica. 



Dactylis. 



Cynosurus crutatus. 



Briza media. 



Milium. 



Anthoxantham, 



Digraplds. 



Fhleum pratense. 



Alopecurus pratensis. 



Agrostis alba. 



A. canina. 



Fsammxi. 

 Air a ccespitosa. 

 A. fiexuosa. 

 A. canescens. 

 Avena pratensis. 

 A. flavescens. 

 Arrhenatherum. 

 Glyceria aquatica. 

 G. fluitans. 

 Poa onaritima. 

 P. compressa. 

 P. pratensis. 

 P. trivialis. 

 P. nemoralis. 

 P. alpina. 

 P. hidbosa. 

 Molinia, 

 Melica. 

 Triodia. 

 Koeleria. 

 Arundo. 



The rhizome of a perennial grass is continued syra- 

 podially by means of buds branching from the lowermosb 

 joints of the flowering shoots, and some importance is 

 attached to the mode of spreading of these lateral sprout- 



