610 
GRAMINEiE. (GRASS FAMILY.) 
mas plumose, deep purple. Grain ovoid, terete, grooveless, in 
the radical flowers much larger (2"-3" long). Neutral palea 
somewhat exceeding the glume and the fertile flower. — Leaves 
lanceolate, flat, copious on the lower part of the culm, clothed like 
the sheaths with bristly spreading hairs. (Name from dp^iKapnos, 
bearing fruit on both sides.) 
1* A. Piirshfi, Kunth. (Milium amphicarpon, Pursh .) — 
Moist sandy Pine barrens, N. Jersey. Sept. — l°-5°high. The jointed 
spikelets and the rudiment of the lower glume have been overlooked. 
52. PASPALUM, L. Paspalum. 
Spikelets spiked or somewhat racemed in 2-4 rows on one side 
of a flattened continuous rachis, jointed with their very short pedi¬ 
cels, plano-convex, awnless, apparently only one-flowered, as in 
Milium, and, on the other hand, differing from Panicum merely in 
the want of the lower glume. Glume and empty palea few-nerv- 
ed. Flower coriaceous, mostly orbicular, flat on the inner side. 
Stamens 3. — Spikes single, digitate, or racemed. (Said to have 
been a Greek name for Millet.) 
P» setaceum, Michx. Culm ascending or decumbent (1°- 
2° long), slender; leaves (!2 11 wide, flat) and sheaths clothed with soft 
spreading hairs; spikes very slender (2'-4' long), smooth, solitary , the 
terminal one long-peduncled , and usually one from the sheaths of each 
of the upper leaves on short peduncles or included ; spikelets (£ r/ wide) 
narrowly 2 -rowed, broader than the zigzag rachis. R (P. debile and 
P. ciliatifolium, Michx.) — Sandy fields, common southward and near 
the coast. August. 
2. P. Ia?ve, Michx. Culm upright, rather stout (1°- 3? high); 
the pretty large and long leaves with the flattened sheaths smooth or 
somewhat hairy; spikes few (2-6), alternate and approximated at the 
summit of a usually elongated naked peduncle, spreading (2*-4* long)? 
smooth, except a bearded tuft at their base ; spikelets broadly 2-roiced 
(over V f wide), much broader than the rachis. 1J. — Moist soil, S. 
New England to Penn, near the coast. August. — Sometimes the 
lower sheaths, &c., are very hairy. 
53. PANICUM, L. Panic-Grass. 
Spikelets panicled, racemed, or sometimes spiked, not involu- 
crate, 1^-2-flowered. Glumes 2, but the lower one usually short 
or minute (wanting in No. 3), membranaceo-herbaceous ; the up¬ 
per as long as the fertile flower. Lower flower either neutral or 
