PI. end . ph. 
156 100. Digitaria. 10. GRAMINEdS. 
Fields; annual; July and August. 
Culm lying down, branchy, smooth, joints villous; leaves 
smoothish, 7 or 9-ribbed ; sheaths broad, often spotted ; 
ligula very short, fringed ; spikelets 1 -sided ; peduncles 
short, 2-flowered, one nearly sessile ; locus tee green or 
purple. 
2. Digitaria glabra . Bald fingers. 
Spikelets mostly in pairs ; inner knotted and forked at 
bottom; loeustee ovate; spathelles nearly equal; sheaths 
and leaves bald. 
Panicum fill forme, Jacquin Ohs . 3, TO. 
Digitaria fiiiformis, Koel. Gram. 26. 
Paspalum ainbiguum, Be Cand. Syn. Ft. Gall. 1505 
Syntherisma glabrum, Schrad . Germ. 1, 163. 
Panicum geminatum, Gaud, in Seringe Cat. 8. 
Panicum glabrum, Gaud. Agr. Helv. 1,23. 
Sandy fields; annual; July and August. 
Culms in tufts, smooth, shining; leaves short, soft, bald; 
ligula short, torn ; spikelets facing one way; rachis flexuous; 
peduncles very short, 2-flowered ; knots at the bottom sub- 
pellucid. 
LX. 101. SETARIA. Beauvois. Bristlegrass . 
Spathelles alternate, lower very small ; spathellules leathery, 
hardened; lower spathellule pointed ; lower flowret neuter 
or male; lodicule very blunt, almost sickleshaped; ovary 
nicked ; stigmata aspergiiliform ; cariopsis free, enclosed 
in the persistent spathellules.— -Panicle simple, spikeshape ; 
locus tee involucrated with 2 or more bristles. 
1. Setaria verticillata. Whorled bristlegrass. 
Locustce in whorls, by fours ; involucrum 1 -flowered, 
2-bristled ; culm diffused ; bristles rough with reflexed 
teeth ; cariopsides smoothish. 
Gramen paniceum spica aspera, Rail Syn , 394, 3. 
Panicum verticillatum, Lin. S. P. 82. 
Penniseturn verticillatum, Brown Prod. 
Setaria verticiliata, Pal. de Beauv. 
Corn fields ; annual ; August and September. 
Root fibrous; culm branchy, ascending, rather compressed, 
bald, prickly above; leaves broad, 9-ribbed, bald; sheaths 
smoothish; ligula hairy; panicle green, with whorls at 
intervals at bottom ; locustce smoothish. 
/3. breviseta. Bristles of the involucrum short, and 
scarcely longer than the locustae. 
