235 
GENERA OF GRASSES OF THE UNITED STATES. 
lanceolate and narrowed into a petiole, the 
spikelets in an open 
in the American Tropics, one extending 
y) 
Species about 20; 
panicle. 
into southern Florida. 
Plant, * 4; spikelet and fertile 
Grapevine mesquite, Paniewm obtuswum. 
Fie. 142, 
floret, 10, 
