GENERA OF GRASSES OF THE UNITED STATES. 195 
a fairly well developed lemma and palea, the fourth floret, if 
present, usually reduced. 
Low cespitose or stoloniferous 
annuals or perennials, with short 
blades, and several or many short 
& deciduous spikes scattered along 
\ the main axis. Species four, on the 
Mexican Plateau, one extending 
NS into western Texas. 
Fic. 115.—Side-oats grama, Boutcloua curtipendula. Plant, * 4; spikelet and floret — 
with rudiment, * 5. 
Type species: Cathestecwm prostratum Pres. 
Cathestecum Presl, Rel. Haenk, 1: 294, pl. 42. 1880, Only, one species de- 
scribed. 
