146 
ANDROPOGON ELLIOTTII LAXI- 
FLORUS N. var. 
Lower sheaths, especially those 
of the innovations, more or less 
densely clothed with fine soft hairs ; 
culms densely silky-bearded just 
below the nodes; upper sheaths 
not approximate and inflated as in 
the species, but remote and close; 
7 racemes 2 to 3 inches long, the 
joints equalling or exceeding the 
spikelets. 
Florida, Nash, no. 1738. 1894. 
Panicum (DIGITARIA) GRACILLIMUM 
n. sp. 
A slender perennial 2 to 3 feet 
high, with very narrow elongated 
leaves and small spikelets, racemose 
along the main axis and the slen- 
der branches. Culms smooth, with 
one or two joints near the base; 
sheaths very long, striate, silky- 
villous below, otherwise smooth; 
ligule membranous, I to 2 lines 
long, fimbriate, decurrent, pubes- 
cent on the back; leaf-blade 6 
inches to a foot long or more, 1% 
lines wide, those of the intra-va- 
ginal innovations much narrower, 
smooth beneath, long and rather 
densely pilose-hairy near the base 
above; otherwise minutely sca- 
brous. Inflorescence 15 inches long, 
the raceme-like branches 7 to 9 
inches, main axis, branches, and 
pedicels scabrous. Spikelets irreg- 
ularly scattered along the branches 
and main axis, two to four together, 
on slender appressed pedicels which 
equal or exceed the spikelets in 
length; pedicels pubescent at the 
base. Spikelets 1 line long, oblong- 
lanceolate, acute; empty glumes, 
two, the first broadly obtuse, one- 
fourth as long as the spikelet, scari- 
