14 



CREEPING AND TUFTED GRASSES 



[CH. 



Creeping below ground and truly stoloniferous. 



Agropyrum. 



Elymiis. 



Psamma. 



Poa pratensis. 



P. compressa. 



Agrostis alba (var. stolonifera). 



Alopecurus pratensis. 



Brachypodium (slightly). 



Bromus erectus (slightly). 



Festuca oirina (var. rubra, Linn.). 



F. elatior (slightly). 



Briza (slightly). 



Olyceria. 



Poa maritima. 



Melica. 



Arundo. 



Tufted Grasses. 



Milium. Festuca sylvatica. 



Agrostis alba (on downs, &o.). F. Myunis. 



Aira ccespitosa. Dactylis. 



A. flexuosa. Cynosunis. 



A. canescens. Poa rigida. 



A. pr(Bcox. P. annua. 



A. caryophyllea. P. trivialis. 



Avena pratensis (slightly creeping). P. nemoralis. 



Arrhenatherum. P. alpina. 



Kardus (Fig. 2). P. bulbosa. 



Hordeum sylvaticum. Molinia. 



Lolium. Triodia. 



Bromus. Koileria. 

 Festuca ovina (except some varieties). 



Creeping above ground (with runners). 



Holcus lanatus. 

 Alopecui-us geniculatus. 

 Agrostis alba (var. stolonifera). 

 Hordeum, praterise (slightly). 

 H. murinum (slightly). 

 Catahrosa (Fig. 4). 

 Cynodon (Fig. 5). 



Hackel has pointed out that a distinctiou must be drawn 

 between the true nodes of the culm, and the swellings 



