( 290 ) 
where they were collected in 1876 by Miss Mary C. Reynolds 
and Dr. A. P. Garber. 
IVA CAUDATA. 
Annual, hispid or somewhat strigose. Stems erect, 4-10 
dm. tall, branching, ridged: leaves opposite or nearly so; 
blades ovate or elliptic, 4-10 cm. long, coarsely and irregu- 
larly serrate or incised, acuminate, acute to truncate at the 
base: petioles 4-} as long as the blades, bristly: spikes con- 
tinuous or interrupted below, conspicuously bracted: bracts 
linear or with a narrowly elliptic base and linear tip, 7-15 
mm. long, sparingly ciliate: heads drooping, sessile: bracts 
of the involucres cuneate, 3 mm. high, ciliolate: corollas 2 
mm. long; segments spreading or recurved. 
In swamps and low ground, Mississippi to Louisiana. Fall. 
A characteristic species apparently confined to the Gulf 
States in the vicinity of the Mississippi River. It may be 
distinguished from /va ciliata by the smoother foliage, the 
thinner leaf-blades and the conspicuously elongated linear 
bracts of the inflorescence. The following specimens are in 
the Columbia University Herbarium: 
Louisiana: Swamps, September, Wm. Carpentex; New 
Orleans, 1835, Dr. Zngalls; 1838, Dr. Riddell. 
Mississippi: Specimen in the Chapman Herbarium with- 
out further record. 
New Southern Grasses, 
By Gro. V. Nasu. 
PaspaLum CHAPMANI. 
Culms tufted, 8-ro dm. tall, smooth and glabrous: leaves 
on the culm about 3; sheaths loosely embracing the culm, the 
basal ones pubescent with short hairs, the remaining sheaths 
glabrous, excepting the pubescent margin, the upper 2 en- 
closing each a single raceme-bearing more or less exserted 
branch; ligule a brown scarious ring about 0.5 mm. wide, 
with back of it a dense ring of erect white hairs 2-3 mm. long ; 
blades smooth and glabrous on both surfaces, the margins 
ciliate, the hairs arising from papillae, lanceolate to linear- 
