254 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
mm. wide, the margins nearly parallel for two-thirds their length, with fewer cilie at 
the base; panicles more loosely flowered; spikelets slightly smaller, 1.4 to 1.5 mm. 
long, 1 mm. wide. 
Autumnal form decumbent, rather freely branching from the middle nodes before 
the maturity of the primary panicles, these early branches long and again branching 
more freely than in the species, the ultimate blades and panicles not greatly reduced. 
This subspecies is distinguished by the ligules, slightly smaller spikelets, and nar- 
rower, parallel-margined blades, taken in combina- 
tion, and in autumnal specimens by the more freely 
branching habit. The specimens cited below all 
show this combination of characters, but about half 
as many specimens occur which are intermediate 
between this and the species. These bear a gen- 
Fic. 275.—P. sphacrocarpon inflatume eral resemblance to the subspecies, having spikelets 
From type specimen. ; 
about 1.5 mm. long, and narrower, but not always 
parallel-margined blades, but with no ligule or the merest trace of one. Because of 
the large proportion of these intermediate specimens P. inflatum Scribn. & Smith 
is here reduced to a subspecies of P. sphaerocarpon. 
DISTRIBUTION. 
Moist sandy ground, Maryland to Florida, and west along the Gulf to Texas, thence 
north to Missouri. 
Missourt: Monteer, Bush 747 in part, 753. 
MaryYLAND: Owings, Hitchcock 1618; Chesapeake Junction, Hitchcock 2412. 
Nortu Caro.ina: Wilmington, 
Chase 3134, 3158. 
SoutH CAROLINA: Orangeburg, 
Hitchcock 26. . 
Georaia: Savannah, Kearney 188, 
194; Americus, T'racy 3642; 
Thomasville, Tracy 3656. 
Fioripa: Lake City, Combs 182; 
Quincy, Combs 403, 406; St. 
Vincent, Tracy 6458. 
ALABAMA: Selma, Kearney 7; Fort 
Morgan, Tracy 8400. 
Mississippi: Biloxi, Tracy 4593, 
4622; Centerville, Tracy 3619; Horn Island, Tracy 2862, 6471. 
Lourstana: Calhoun, Hitchcock 1285; Alexandria, Ball 441, 536; Calcasieu, 
Cocks 3007; Lake Charles, Chase 4429. 
Texas: Without locality, Nealley in 1890. 
OKLAHOMA: Poteau, Hitchcock in 1903 (Hitchcock Herb.). 
Fig, 276.—Distribution of P, sphaerocar pon inflatum. 
150. Panicum polyanthes Schult. 
Panicum multiflorum Ell. Bot. 8. C. & Ga. 1: 122. 1816, not Poir. 1816. Elliott 
gives no exact locality, but his specimen was presumably from the vicinity of Charles- 
ton as he merely states, ‘‘Grows in shaded, dry soils.’? The type, in the Elliott Herba- 
rium, consists of a single culm, lacking base, bearing three leaves and an immature 
panicle, slightly included at base. The accompanying label reads: ‘‘ Panicum multi- 
florum mihi. Hab. in umbrosis, Flor, May-Jun,” 
