36 GRAMINEAE (GRASS FAMILY) 
other; they have no glumes. and the lemma is boat-shaped, 
sharply keeled, awnless, hard, and bristly, folded over the palea, 
by strong marginal nerves. (Fig. 12.) 
Means of control 
Ditches infested with this weed have to be dug out, and the task 
should be done before any seed has matured to float downstream 
in the hairy, boat-like husks. 
st 
Fic. 12.— Rice Cut-grass (Leersia ory- Fie. 13. — Canary-grass (Pha- 
zoides). Xt}. laris canariensis). X }. 
