( 433 ) 
with a flat somewhat twisted bent awn, 12-15 mm. long, its 
edges hispidulous; pedicellate spikelet a single nerved scale, 
on a pedicel shorter than the sessile spikelet with its terminal 
hairs less than twice as long as the sessile spikelet. 
In dry sandy soil, southern Georgia and Florida. Type 
collected by the writer in the high pine land at Eustis, Lake 
Co., Fla., April 15-30, 1894, no. 473; nos. 146, 191, 426, 
489, 595 and 1077 are also referred here. Dr. John K. Small 
obtained it also in Georgia in the St. Mary’s River swamp 
below Trader’s Hill, June 12-15, 1895. Nos. 4oro and 4952 
of Mr. A. H. Curtiss, collected at Jacksonville, belong to 
this species. It is related to A. argyraeus, but it can at once 
be distinguished by its stouter and more silky racemes, and 
by the broader very thick first scale of the sessile spikelet with 
its less acuminate apex and its flat and glabrous internerve. 
In A. argyraeus the internerve is decidedly furrowed, at least 
when dry, probably due to its much thinner texture, and 
strongly hispidulous. 
ANDROPOGON TRACYI. 
A tufted glabrous perennial, the basal leaves numerous and 
usually about one-half as long as the culms. ulms 5-8 dm. 
tall, branched above the middle, the nodes of the inflores- 
cence usually barbed with long appressed silky hairs; sheaths 
shorter than the internodes; ligule scarious, about 0.5 mm. 
wide; blades erect, sparingly hirsute on the upper surface 
near the hase, 1-2 dm. long and 2-3 mm. wide; ean 
cence 2-3 dm. long, narrow, Pits branches erect; spathes 4~5 
cm. inne. acuminate, from slightly shorter than to oa 
the racemes; racemes in pairs, 3-4 cm. long, rather stout: 
sessile spikelets 5 mm. long, about twice as long as the stout 
internodes which are densely clothed with silvery white hairs 
a little more than one and one-half times as long as the spike- 
let, the awn 1.5-2 cm. long, sometimes a little spiral at the 
base; pedicellate spikelet wanting, or present as a minute 
rudimentary scale, the pedicel exceeding the sessile spikelet. 
In dry soil, Alabama and Mississippi. Type collected by 
Prof. S. M. Tracy at Columbus, Miss., Oct. 14, 1895, no. 
3083. Messrs. Earle and Baker also secured it at Auburn, 
Ala., on Oct. 14, 1897, and distributed it as A. argyracus. 
