DIGITARIA.—SETARIA. 377 
48. HorpEumM. Glumes 2, terminating in long sete, with 1 
perfect flower and a stalklike rudiment next the common 
rachis. Spikelets in threes, often partially barren. 
Tr. XII. ROTTBOELLIEA. Spikelets of one perfect flower 
placed edgewise on the rachis. 
49, Narpus. Spikelets’in 2 rows on one side of the rachis, 
of one flower. Glumes 0. Outer pale keeled, tapering into 
a subulate point. Stigmas elongate, filiform, protruded at 
the apex of the flower. 
50. Leprurus. Spikelets solitary, imbedded alternately on 
opposite sides of the rachis, of 1 flower and a superior rudi- 
ment. Glumes 1—2 opposite to the rachis, cartilaginous, 
covering the flower. Pales scarious. Stigmas feathery. 
Tribe I. Panicee. 
1. Drerraria Scop. 
{1. D. sanguinalis (Scop.); 1. and sheaths hairy, fl. oblong- 
lanceolate glabrous with downy margins (?).—E. B.849, P. 70. 
—St. ascending, a foot long.—Not a true native; occasionally 
found in fields. A. VIII.] E. 
2. D. humifusa (Pers.); 1. and sheaths glabrous, fl. elliptical 
downy with glabrous nerves.—E. B.S. 2613. P. 71.—St. mostly 
rocumbent, 4—8 in. long. Spikes usually 3 or 4, springing 
Eom nearly the same point. Spikelets in pairs, one on a longer 
stalk than the other.—Sandy fields, rare. A. VII. VIII. E. 
2. Ecuinocuioa Pal. de Beauv. 
*]. E. Crus-galli (Beauv.); spikes alternate or opposite, spike- 
lets near together, upper gl. and sterile floret awned or mucro- 
nate hispid, rachis hispid. B. 876. P. 67. Panicum Sm. 
Oplismenus Kunth.—A strong coarse grass; found occasionally 
on cultivated land—Near London. A. VII E 
3. Seraria Pal. de Beauv. 
¥*]. S. viridis (Beauv.); panicle spikelike, involucral bristles 
with erect teeth, pales smooth.—Ponicum Sm., E. B. 875. P. 68. 
—Fields near London and Norwich. A. VII. VIII. E. 
*2. §. verticillata (Beauv.); panicle spikelike, involucral 
bristles with declining teeth, pales smooth.— Panicum Sm., E. B. 
874. P. 69.—Fields near London and Norwich. A. VII. VIII. 
E. 
