110 CLASSIFICATION ACCORDING TO [CH. 



Any resemblances to forms of Aira are at once nullified by the 

 absence of true awns in Koeleria. Pestuca and Poa have more 

 numerous flowers in the spikelet. Anthoxanthum has only one flower, 

 with two stamens, in the spikelets. PMeum and Alopecurm present 

 resemblances, but see pp. 101 and 102. 



(6) Panicle elongated and lax — i.e. all or most of the 

 spikelets on distinct slender stalks, longer than 

 themselves. 



(i) Panicle close: the spikelets on distinct and 



even long stalks, but the latter erect and keeping 



the spikelets near the main axis. 



In some cases the stalks from the main axis bear only one 

 spikelet each and the type of inflorescence is that of a raceme ; 

 usually, however, one or more of the lowermost stalks branch and 

 disclose the panicle. 



* Panicle with few simple branches, racemous, 

 each spikelet large and containing about four 

 flowers, palea three-toothed at the apex. A 

 small heath-grass, with hairs at the ligule. 



Triodia decumbens, Beauv. 



The inflorescence may have some resemblance to Melica (see 

 p. 105), but the four-flowered spikelet, ligule, habitat and stature 

 distinguish it at once. 



** Panicle with divided branches, which are more 

 or less erect. 

 + Spikelets awnless. 

 © Spikelets small, purplish, with two or at 

 most three florets ; the upper on a stalk. 

 Coarse moor-grass. 



Molinia ccervlea, Moench. 

 0© Spikelets with six or more florets. 



