52 POACEAE 
often in 3’s, the longer pediei cels as much as 5 mm. long: first glume d 
second glume half to thr E a as long as the sterile lemma. [S. Bakeri 
Nash] Modi pinelands, F 
9. S. paniceum (Sw.) Nash. Stems commonly in dense tufts, O. 3-1 m. tall: 
leaf-shea the "at eed puerta nt or glabrous: blades about L mm. wide, 
im der, often folded or cd the older ones usually flexuous: racemes 
ostly 1-3, erect, 5—20 ecm., ommo nly 10-15 em. long.—Moist soil, pinelands 
"i open PUE S Fla. — (WF. I.) 
10. 8S. Mn (L.) Nash. Stems usually in small tufts, m as much as 
: leaf-sheaths ee blades ees than 10 cm. long: racemes 
1-5, xen or ascending, usually not over long: spikelets apr n erowded: 
ing: second gl e steri 
= 
D. 
e 
a 
lemma what acuminate. D filiforme L.]—Sandy fields and open 
Seide Coastal Plain and adj. provinces, Fla. to Tex., Kans., and Mass. 
Nat. of Eu.—(W. I., Mex.) 
h 
1 5 ei and apparently le the leaf-blades longer the racemes more 
ae nger 
Kh 
o 
H 
B 
et 
E 
Hh 
© 
4 
Hi 
J 
ie) 
i 
ag Ë 
© 
un 
e 
B 
au 
ed 
"3 
T 
(2-3 mm. a Nas si 
lets —Sandy y fiel Ms al porto Coastal Plain, Fla. to E Tex., Okla., Il., and 
S Va.—(W. I., Mez.) 
21. LEPTOLOMA Chase. Branching perennials with brittle culms, felty 
pubescent at base, flat blades and open or diffuse panicles, these breaking 
way at maturity, becoming tumble-weeds. Spikelets lanceolate, on slender 
pedicels: first glume minute or obsolete: second glume 3 -nerved, nearly as long 
as the 5-7-nerved sterile lemma, a e of appressed silky hairs down the 
fertile 
rg 
B 
— Four Spem Australian, exeept the 
ibe ae. 
d L. cognatum (Sehutt) Chase. Stem de- 
mbent at base, 20—50 em. long: leaf- 
blades mostly pem ‘than x em. long: panicle 
bee ide: 
V ndis ehult. P. autumnale Grad J 
(WITCH- RASS.)—Sandy RED grounds, 
rious RU Fla. to Tex., Ariz. oon UT. Vt.— (Mez.) 
29. ERIOCHLOA H. B. K. Annuals or perennials with terminal panicles 
consisting of several to many spreading or P eis racemes, usually rather 
elosely arranged along the main axis. Spikelets more or less pubescent, soli- 
tary or sometimes in pairs, short-pedieelled or subsessile in 2 rows on one side 
of a narrow, usually hairy rachis, the pedicels often clothed with long stiff 
hairs, the back of the fertile lemma turned from the rachis: lower rachilla- 
joint thickened, forming a more or less ring-like callus below the second glume, 
the first glume reduced to a minute sheath adnate to it: second glume and 
