ZOYSIEjE 135 



1 5. Perotis, Ait. 



These are slender annual or perennial grasses with short broad 

 leaves. Inflorescence is a spike or spiciform raceme. Thespikelets 

 are I-flowered, sessile or shortly pedicelled and jointed. There 

 are three glumes in the spikelet. The first and the second glumes 

 are empty, subequal, narrowly linear with a strong midrib which 

 is produced into a long capillary awn. The third glume is very 

 small, hyaline, lanceolate, acute, I-nerved and with a perfect 

 flower; palea is small, narrow, hyaline and nerveless. Stamens 

 are three with short anthers. Styles are short and united at the 

 base with very short stigmas. The grain is long and narrow, 

 longer than the flowering glume. 



