GENERA OF GRASSES OF THE UNITED STATES. 
219 
Our species is Stenotaphrum secimdatum (Walt.) Kuntze (JS. 
americanum Schrank) (fig. 132), found near the coast from North 
Carolina to Florida and Texas, and southward, growing especially 
Fig. 131. — Lcptoloma cognatum. 
Plant, X i ; two views of spike- 
let and fertile floret, X 10. 
in alluvial or mucky soil. It is culti- 
vated as a lawn grass in the coastal 
cities under the name of St. Augus- 
tine grass. The lawns of this grass 
have a coarse texture but are other- 
wise satisfactory. The grass is prop- 
agated by setting out cuttings or 
pieces of the stolons bearing shoots. 
113. Eeiochloa H. B. K. 
Spikelets dorsally compressed, 
more or less pubescent, solitary or 
sometimes in pairs, short-pediceled 
or subsessile, in two rows on one side 
of a narrow, usually hairy rachis, 
the pedicels often clothed with long, 
stiff hairs, the back of the fertile 
lemma turned from the rachis; lower 
rachilla joint thickened, forming a 
more or less ringlike, usually dark- 
colored callus below the second 
lume, the first glume reduced to a 
minute sheath about this and adnate 
to it ; second glume and sterile lemma 
about equal, acute or acuminate, 
the lemma usually inclosing a hya- 
line palea or sometimes a stami- 
