112 



Botanical Section [pt i 



(Wood Barley-grass.) A not very 



H. sylvaticum, Hucls 

 common perennial. 



Flowers about midsummer ; culms about 2 feet high ; spike 

 about 3 inches long, lax, i.e. the spikelets are distinctly separated 

 on the rachis. In this species the flowers of the central spikelets 

 are staminate or rudimentary, while each lateral spikelet contains 

 one bi-sexual flower. 



Fig. 117. Hordeum murinum (left) and 

 Hordeum pratense (right). About 

 ?, nat. size. 



Fig. 118. A "triplet" of spikelets of 

 Hordeum murinum. Nat. size. Only 

 the central spikelet, which lies 

 between the two dilated and fringed 

 glumes, contains a grain. 



Kceleria cristata, Pers. (Crested Hair-grass.) (Fig. 119.) 



A small perennial forming dense tufts of rather stiff foliage, 



principally found on dry soils near the sea. Sheaths split and hairv. 



Blades rolled in the shoot, narrow, and pubescent or downy on 



