21 
strict, narrow, with few elongated, narrow, erect branches; spikelets 2 to 24 lines 
long, oblong, nearly sessile; empty glumes nearly equal, 5-nerved; flowering glume 
oblong, pointed, striate ; fertile flowers on long peduncles at the base of culm twice 
as large as the others; the grain oblong, 2 to 3 lines long.—Pine barrens, New Jersey 
to Florida. 
2. A. Floridanum. Chapm., Fl. S. States, p. 572. Culms erect, 1 to 3 feet high, 
branching at the base, from creeping rootstocks; leaves linear-lanceolate, rigid, 
smooth, 2 to 5 inches long; sheaths fringed on the margins; panicle strict, narrow, 
with few, erect branches; spikelets 3 lines long, oblong, acute; empty glumes equal, 
5-nerved ; flowering glume smooth, striate, acute; fertile flowers much as in the pre- 
ceding species; the anthers imperfect; grain compressed-globose, pointed, inclosed 
in the hardened flowering glume and palet.—Banks of the Apalachicola River, 
Florida. 
ERIOCHLOA H. B. K. 
Spikelets with a peculiar cup-like or annular swelling of the pedicel 
just below the base, nearly sessile in one or two rows along one side of 
the slender branches of single panicle. The spikelets with one perfect 
flower, or with a second male or neutral one; the outer glumes empty, 
hairy, nearly equal, membranaceous, acute, or acuminate (awned in one 
species) ; the periect flower somewhat shorter, coriaceous, obtuse, or 
mucronate pointed; the imperfect flower when present consisting of a 
very thin palet, with or without stamens. 
1. BE. sericea Munro, MS. Perennial; culms erect, 2 to 2} feet high, simple, 
leafy ; leaves narrow, 4 to 10 inches long, softly pubescent; sheaths mostly shorter 
than the internodes; panicle terminal, linear, 6 to8 inches long, consisting of 6 to 10 
sessile, alternate, appressed branches, the lower 1 to 1} inches long, the spikelets im- 
bricated in 2 rows, each about 2 lines long, 1-flowered, perfect flower oblong-ovate, 
very short-pointed.—Texas and New Mexico. 
2, BE. Lemmoni Vasey and Scribn. Culms 1} to 2 feet high, decumbent and 
much branched below; leaves rather short and wide, 3 to 6 inches long, one-half to 
three-fourths inch wide, lanceolate, acuminate, pubescent, as are the loose sheaths; 
terminal and lateral panicles 3 to 4 inches long, compressed, of about6 simple sessile 
branches or spikes, spreading horizontally in flower, becoming appressed ; branches 
1 to 1} inches long, loosely flowered; spikelets shortly-pediceled, ovate-lanceolate, 
acuminate, 2 lines long, spreading nearly at right angles tu the rachis; flowering 
glume one-fourth shorter than the outer, tipped with a short point; sterile flower of 
3 stamens.—Arizona, New Mexico and Mexico. 
3. EB. punctata Hamil. (2. polystachya H. B. K.?: Kunth Gram.t. 30.) Culms 
much branched below, 2 feet high, leafy; leaves 6 to 10 inches long, 4 to6 lines wide; | 
panicles 3 to 4 inches long, of 6 to 10 loosely flowered spikes, contiguous, 1 to 2 inches 
long; spikelets short-pediceled, about 2 lines long, the empty glumes oblong-lance- 
olate, sparsely pubescent, the upper short-awned; flowering glume one-third to one- 
half shorter than the spikelet, oblong, with a short awn-like point.—Southern 
Kansas to Mexico. 
Var. MINOR Vasey. Smaller than the preceding, the leaves narrower, spikes fewer 
and shorter, the spikelets smaller, the empty glumes acute, the flowering glume pro- 
portionally longer.—Texas (No, 2087, Wright, Nealley). 
4. BE. longifolia Vasey. (H. mollis var. longifolia Vasey Bull. Torr, Club, X11. p, 25.) 
Culms tufted, erect, 2 to 24 feet high, slender; leaves very narrow, 1 to 2 lnes wide, 
10 to 18 inches long, erect, smooth; panicle 4 to 6 inches long, of 5 to 8 nodding, 
loosely flowered spikes, the lower ones with slender pedicels one-half to three-fourths 
inch long; spikelets 2 lines long, 2-flowered; empty glumes pubescent, ovate, acumi- 
nate; fertile flower with a short awn; sterile flower with a palet and 3 anthers.— 
South Florida (4. H.Curtiss), 
