109 
( c 
Ah 
FIG. 405. CENCHRUS IN Curtis, Bost. Journ. Nat. Hist. 1: 
185. 1837. (C. strictus Chap gris ag 1878.) SOU 
BUR.—A smooth, ascending, and more or less branched (?) 4.5-9 dm. 
(149-39) high, with flat leaves and slender spikes 5-8 em. (2/-3’) long. Sheaths 
smooth ted: leaf-blades 4-15 em. (2’-6’) long, 3-5 mm. (1-277 wide, plane, 
smooth. aoe inel in a bur-like involucre (a) which is naked (free 
n spines ines) below, with 6 to 12 stout above.—Sandy soil along the 
coast, ito T June to October. 
The smaller involueres naked : at the base, with fewer and shorter spines 
it somewhat resembles. 
volucres, which are 
this plant from (Cenchrus which 
bond eer sedes T its pubescent in 
y to the 
