GRAMINEZ. (GRASS FAMILY.) 558 
glumes, the lower one with an awn 3 —4 times as long as the spikelet. (Agros- 
tis tenuiflora, Willd.) — Dry rocky soil in the upper districts. July and Aug.— 
Culms 3? high. 
3. M. diffusa, Schreb. Culms diffusely branched, low ; enti long and 
slender; glumes very small, the upper one truncated ; awn of the palea twice as 
long as the spikelet. — Shaded waste places, Florida, and northward. Aug. and 
Sept. — Culms 1? - 13? high. 
$2. TRICHOCHLOA. — Panicle terminal, diffuse: spikelets on ling and hair- 
like stalks: culms tall and simple. 
4. M. eapillaris, Kunth. Leaves rigid, elongated, convolute; panicle 
erect, the long and purple glossy branches and spikelets drooping ; glumes nearly 
equal, half as long as the pales, the lower one awned; palez unequal, the up- 
per one barely awned, the lower 3-awned, with the middle awn many times 
longer than the spikelet. — Varies with both glumes long-awned. (M. filipes, 
Curtis.) — Sandy soil along the coast, and sparingly in the interior, Florida, and 
northward. Aug. and Sept. —- Culms 2°-4° high. 
5. M. trichopodes. Culms and leaves filiform, elongated ; panicle erect, 
oblong; spikelets linear, on spreading stalks; pales twice as long as the nearly 
equal awnless glumes, ribbed; the lower one tipped with a short awn, and with 
the two lateral nerves slightly percurrent, hairy at the base. (Agrostis tricho- 
Podes, Ell. — Low pine barrens, Florida to North Carolina. mec xm 
29 - 3° high. Panicle rately purplish. Leaves flat. 
11. BRACHYELYTRUM, Beauv. 
A perennial erect grass, with a simple slender culm, flat lanceolate leaves, 
and a loose lanceolate simple panicle of large (3 long) 1-flowered spikelets. 
Lower glume obsolete, the upper minute, persistent and awnless. Pale rigid, 
rough with short bristly hairs, the lower one concave, 5-ribbed, tapering into a 
long straight awn, and enclosing the shorter 2-pointed upper one. An awn-like 
pedicel of a second flower is applied to the back of the upper palea. — 
and long stigmas 2, Grain linear. 
1. B. aristatum, Beauv. abitaga erecta, Schreb.) -n rocky 
places, Florida, and northward. July.— Culms solitary, 20-30 Mee: 
T CALAMAGROSTIS, Adans. REED Dukr-Oniss. 
Paoi grasses, with rigid erect simple culms, bearing a loose or contracted 
panicle of 1-flowered spikelets, with the hairy pedicel of a second flower at the 
back of the upper palea. Glumes 2, nearly equal, keeled, longer than the pales. 
es ee eS ee cent awned on the back. 
Stamens 3. Grain free. 
5 Lc ERE MAGROSTIE inona r and paleæ membranaceous, the 
a former boat-shaped : panicle open or loose. > 
- coarctata, Torr. Panicle a oe epe game kenes- 
