POACEAE 51 
glume half as long as the spikelet, both 
a 
C. A 
2. S. Ischaemum (Schreb.) Nash. Plant 
decumbent and spreading or at first erect: 
stem En less than 50 em. tall: leaf- 
: Panicu abru 
Gaud.]|—Waste-places, various KM DECR S. C. to Ark., S. D., and Me.; oc- 
casional westward. Nat. of Eu.—(W. I.) 
3. S. floridanum A. pene Differs from S. Ischaemum in e smaller spike- 
ra (1. 7 mm. long, 0.6 wide) and the less pubescent second glume and 
sterile lemma, the hairs nob being Sandi dr — Sandy puni error Co., 
Fla. 
flowering pinu usually not more than 30 e ll: leaves erowded s e “creep: 
ing stems, the sheaths villous, the blade 1-2 em i 
usually 3—5, slender, often areuate, usually 3-6 cm. long: puo ule 
erowded: first glume wanting: second glume about one- i as long as the 
sterile lemma, both pubescent. [Panicum serotinum Mic A [Ss ERSUnrG and 
waste- im. Coastal Plain, Fla. to La. and N. C.—(W. I.) 
s. sanguinale (L.) Dulae. dem nt ~ ee often purplish: 
stem rooting at the lower nodes, h as 1m : leaf-shea Bes papillose- 
pilose: racemes several to many, 3-15 c m. long, Ted at the summit of the 
or m 
alf g 
Pu arid or the sterile lemma glabrous. [Panicum sanguinale L. S. fimbriatum 
S. marginatum Nash barbatum pir wis B-GRASS. rd ields, pas- 
iu and waste-places, throughout E U. S.—(W. I., Mez., C. A., , O. W.) 
6. S. ipie Casey) Nash. Stem creeping and rooting at the lower nodes, 
as much as e leaf- bed a -pilose, those of the innova- 
tions ee od and K rac ending, pale, 8-12 em. long: 
Spikelets aont 3 mm. n cond. zin d sterile lemma. finely nerved, as 
lo ong as the fertile lemma. E fields, : Fla — (Cu ba.) 
7. S. pauciflorum A. Hitche. Plant perennial: stem erect or somewhat decu 
bent at base, 0.5-1 m. tall, very slender: leaf-sheaths and blades BRI 
villous: racemes 2-3, ascendi ing or erect, 5-11 em. M the filiform rachis 
naked for aa em. at base: spikelets rather distant, elliptic, about 3.2 mm. 
long, glabrous : first glume minute, with a hyaline erose margin: second glume 
and sterile inate a finely nerved, as long as the grayish fertile lemma.—Pine- 
lands, S Fla. 
8. S. gracillimum (S cheers Nash. Stem 0.5-1 m. tall: leaf- Hn als pw 
pil Re "blades long and narrow, 1-2 mm. wide, often involute: s 2—sev- 
eral, slender, ascending or PD 10—30 em. long: spikelets bur 2n mm. long, 
