124 
GRAMINEAE. 
33- Panicum fléxile (Gattinger) Scribn. Wiry Panicum. (Fig. 275.) 
an capillare var. flexile Gattinger, Tenn. Fl. 94- 
1887. 
Panicum flexile Scribn. Bull. Torr. Club, 20: 476. 1893- 
Culms erect, 6/-18’ tall, slender, simple or 
somewhat branched at base, bearded at the nodes. 
Sheaths papillose-hirsute; leaves 4/-9’ long, 2//-3/” 
wide, erect, long-acuminate, more or less pubes- 
cent; panicle 4’-9’ long, narrowly ovoid to oblong 
in outline, its branches ascending, the lower ones 
2/-34’ long; Spikelets 114’ long, much shorter than 
the pedicels, acuminate; first scale about one-fourth 
as long as the spikelet; second and third scales 
about equal, 5-7 nerved; fourth scale elliptic, some- 
what shorter than the third. 
In moist or dry soil, Pennsylvania to Tennessee and 
Missouri. Aug.—Oct. 
34. Panicum autumnale Bosc. Diffuse Panicum. (Fig. 276.) 
Panicum nudum Walt. Fl. Car. 73. 1788? 
Panicum divergens Muhl. Gram. 120. ,,, 1817.7 Not 
H.B.K. 1815. a Py 
Panicum autumnale Bosc; Spreng. Syst. 1:7320. - 1825. 
Culms erect or decumbent, 1°-2° tall, generally 
much branched at the base, slender. Sheaths 
shorter than the internodes, the upper glabrous, 
the lower sometimes densely pubescent; leaves 
1%4/-4 long, 1/’-3’’ wide, ascending, acuminate, 
glabrous ; panicle 5’—12’ long, bearded in the axils, 
the lower branches 4/—8’ long, at first erect with 
the lower portion included in the upper sheath, 
finally exserted and widely spreading at maturity ; 
spikelets lanceolate, about 114’ long, acuminate, 
glabrous or pubescent, on capillary pedicels of 
many times their length; first scale minute; sec- 
ond and third equal, acute, glabrous or sometimes 
villous, the fourth lanceolate, 114’’ long. 
i 
— 
In dry soil, Illinois to Georgia and Florida, west 
to Minnesota, Kansas and Arizona. July—Sept. 
35. Panicum minus (Muhl.) Nash. 
Not Sw. 
Wood Panicum. (Fig. 277.) 
Panicum capillare var. minor Muhl, Gram. 124. 1817- 
Panicum capillare var. sylvaticum Torr. Fl. 149. 1824. 
Not P. svivaticum Iam. 1797. 
Panicum diffusum Pursh, Fl. Am. Sept. 1: 68. 1814. 
1788. 
Panicum minus Nash, Bull. Torr. Club, 22: 421. 1895. 
Culms erect, or occasionaily decumbent, 8/—2° 
long, slender, somewhat branched at base. Sheaths 
hirsute ; leaves 2’-4’ long, 1’’-3’’ wide, erect, more 
or less pubescent; panicle 4’-9’ long, its lower 
branches 3/-4’ long, spreading or ascending; 
spikelets about 3/’’ long, elliptic, acute, smooth, 
borne in pairs at the extremities of the ultimate 
divisions of the panicle; first scale about one-third 
as long as the equal acute second and third ones, 
the fourth somewhat shorter than the third. 
In dry woods and thickets, New Brunswick to 
Georgia, west to Missouri. Aug.—Sept. 
