14 CREEPING AND TUFTED GRASSES [CH. 
Creeping below ground and truly stoloniferous. 
oO fo) 
Agropyrum. Bromus erectus (slightly). 
Elymus. Festuca ovina (var. rubra, Linn.). 
Psamma. fF’. elatior (slightly). 
Poa pratensis. Briza (slightly). 
P. compressa. Glyceria. 
Agrostis alba (var. stolonifera). Poa maritima. 
Alopecurus pratensis. Melica, 
Brachypodium (slightly). Arundo. 
Tufted Grasses. 
Milium. Festuca sylvatica. 
Agrostis alba (on downs, &c.). F, Myurus. 
Aira cespitosa. Dactylis. 
A. flexuosa. Cynosurus. 
A. canescens. Poa rigida. 
A. precox. P. annua. 
A. caryophyllea. P. trivialis. 
Avena pratensis (slightly creeping). P. nemoralis. 
Arrhenatherum. P. alpina. 
Nardus (Fig. 2). P. bulbosa. 
Hordeum sylvaticum. Molinia. 
Lolium. ; Triodia. 
Bromus. Keleria. 
Festuca ovina (except some varieties). 
Creeping above ground (with runners). 
Holcus lanatus. 
Alopecurus geniculatus. 
Agrostis alba (var. stolonifera). 
Hordeum pratense (slightly). 
H. murinum (slightly). 
Catabrosa (Fig. 4). 
Cynodon (Fig. 5). 
Hackel has pointed out that a distinction must be drawn 
between the true nodes of the culm, and the swellings 
