132 Botanical Section [PT i, CH. vn 



Triodia decumbens, Beauv. (Heath-grass.) 



Rather common on heaths and barren land in the British Isles. 

 A small perennial with stringy roots. Sheaths hairy, flattened. 

 Blades rather long, narrow and acute, hairy. Ligule represented 

 by a tuft of hairs. Flowers about July, the culms from 6-12 

 inches high. Panicle close, of a few simple branches. Spikelets 

 few (seldom more than six), rather large, three or four-flowered. 

 Empty glumes equal, three-nerved, acutely pointed, smooth. 



"Seed" about 6mm. long. Outer palea round-backed, 

 indistinctly nerved, with a tuft of short white hairs at its base, 

 and three-toothed at its apex. Rachilla cylindrical. (Fig. 149.) 



