560 . GRAMINEZ, (GRASS FAMILY.) 
than the awn-pointed teeth. (Uralepis cornuta, Ell.) — Dry sandy soil, Florida 
to North Carolina. Aug. and Sept. J. 
2. T. purpurea. Culms procumbent or ascending, 19 — 13? long; leaves 
and sheaths smooth or roughish; lateral panicles included; awn of the lower 
palea bearded, about as long as the obtuse teeth, and much shorter than the 
paler. (Aira, EJ. Uralepis purpurea, Nutt.) — Drifting sands along the coast, 
Florida, and northward. —Aug.- Oct. — Leaves 1-4! long. Spikelets bright 
purple, 
26. EATONIA, Raf. 
Slender erect and tufted grasses, with narrow leaves, and small smooth (not 
hairy) spikelets of pale flowers in a racemose or spicate panicle. Spikelets awn- 
less, 2 -5-flowered, the uppermost flower usually an awn-like pedicel. Glumes 
membranaeeous, shorter than the flowers ; the lower one linear and 1-nerved; the 
upper obovate, 3-nerved. Pales unequal, the lower one obtuse. Stamens 3. 
Grain linear-oblong. 
1. E. obtusata, Gray. Panicle dense, spike-like, the 2-flowered spikelets 
much crowded on the short erect branches ; glumes rough on the back, the upper 
one round-obovate, somewhat truncate, rather rigid; lower palea lanceolate- 
oblorig, obtuse, rough-keeled. (Aira obtusata, Michx.) — Dry soil, Florida, and 
northward. April and May. | and (1) — Culms 1°-2° high. 
2. E. Pennsylvanica, Gray. Panicle slender, loose, the 2~3-flowered 
spikelets scattered on the slender branches; glumes slightly roughened on the 
back, the upper one obovate, obtuse, or abruptly short-pointed ; lower palea ob- 
tuse; leaves flat, with the sheaths smooth, rough, or soft-downy. (Aira mollis, 
Ell.) Lo ppt districts. April. 1 — Culms 19-2? high. 
Var.? filiformis. Culms 1? high, very slender, barely longer than the fili- 
form involute leaves; panicle linear, loose ; spikelets scattered, mostly 3-flowered, — 
the flowers distant on the rachis, the lowest one and glumes nearly smooth. (Aira 
mollis, var. — — Dry pine barrens, Florida to South Carolina. March. 
27. MELICA, L. 
Perennial grasses, with flat leaves, and 3 -5-flowered spikelets of large flowers 
in a simple panicle. Flowers awnless, the upper ones imperfect. Glumes mem- 
branaceous, unequal, convex, obtuse, scarious on the margins, many -nerved. 
Palez similar to the glumes ; the upper one smaller, concave on the back. Sta- 
‘Mens 3. Grain free. 
1. M. mutica, Walt. Culms 19-29 high le&ves and eheaths smooth or 
. rough-pubescent ; panicle loose, of few nodding racemose spikelets ; upper flow 
ems Mano. truncate-obovate ; palea roughish. (M. glabra, Miche.) — 
