CH. vii] Botanical Description of Species 



93 



thickened at the top, almost "knobbed" (except in the case of the 

 uppermost "seed" of each spikelet). It has a small circular 

 cavity at its top. (Fig. 86.) 



Cynosurus echinatus. L. (Rough Dog's-tail.) 



A tufted annual, rare, and perhaps only introduced into 

 Britain. Flowering culms 1 to 2 feet high. Ligule of upper 

 leaf is very long. Panicle oval in outline, about f inch long. The 

 outer palea bears a slender terminal awn about as long as itself. 



Flowers about June. 



Fig. 88 Fig. 89 



Fig. 88. "Seed" of Dactylis glomerata. x 10. Front view. 

 Fig. 89. Three attached "seeds" of Dactylis glomerata. x 10. The proportion 



of such attached " seeds " is especially high in immature samples. Usually 



only the lowest pair of paleae contain a grain. 



Dactylis glomerata, L. (Cock's-foot.) (Fig. 87.) See p. 145. 



A coarsely-tufted perennial growing on almost every type of 

 soil. The plant is entirely glabrous though it may often be rough 

 to the touch . Its foliage is dull and varies much in colour from a 

 light green to a deep bluish-green hue. Sheaths entire, very sharply 

 keeled both at back and front. Leaves folded in the flattened 

 shoots ; blade partly conduplicate, long, and tapering into an acute 



