238 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
slightly shorter than the fruit and sterile lemma at maturity; fruit 2.2 mm. long, 
1.2 mm. wide, elliptic, obtuse. 
Autumnal form spreading-decumbent, the stiff culms rather loosely branching from 
the middle and upper nodes, the ultimate branchlets crowded at the ends of the 
primary branches, the reduced blades erect; winter leaves very firm, conspicuously 
ciliate; short culms with tufted branches sometimes formed during the winter, the 
green bushy crown persistent at the base of the tall vernal culms. 
Curtiss’s no. 4877 is referred here although the specimens resemble P. common- 
sianum, and the ligule is only 1 mm. long, as in that species; the spikelets, however, 
are those of P. ovale. 
DISTRIBUTION. 
Dry sandy woods, North Carolina to Florida, also in Texas. 
NortH Carorina: Near Wilmington, Ashe in 1899, Chase 4589. 
SoutH Carona: Isle of Palms, Hitchcock 107; Aiken, Ravenel. 
Fioripa: Duval County, Curtiss 3583* in part; Jacksonville, Curtiss 4877, 5866, 
5813; Lake City, Combs 138, 
145, Mitchcock 550, 1013; Madi- 
son, Combs 225; Chattahoo- 
chee, Tracy 3617; Gainesville, 
Chase 4250, 4261; Old Town, 
Combs 888; Eustis, Curtiss 
6616, Nash 75, 103, 147, 1118, 
1518, 1857; Lake Harris, Chase 
4118; Tavares, Hitchcock 820; 
Grasmere, Combs 1080; San- 
ford, Hitchcock 785, 787; Titus- 
ville, Hitchcock 7614; Ormond, 
Hitchcock 160; Dunedin, Tracy 
6725; Braidentown, Mitchcock 968; Lakeland, Hitchcock 833, 846, 847, 851; 
Myers, Chase 4174, Hitchcock 900, 914, Lee Co. Pl. 474; Miami, Chase 3866, 
3947, Hitchcock 634, 661, 668, 677, 719, Pollard & Collins 223; Homestead, 
Hitchcock 688. Bs: 
Texas: Waller County, Thurow 17 in 1906. 
Fig. 252.— Distribution of P. ovale. 
© 140. Panicum scoparioides Ashe. 
Panicum scoparioides Ashe, Journ. Elisha Mitchell Soc. 15: 53.1898. “‘Based on 
No. 283, ex. Herb. A. Commons. Dry soil. Centreville, Del. June 1873. Distributed 
sub nom. P. Scribnerianum Nash.’’? This specimen could not be found in Ashe’s 
herbarium, but a specimen bearing the above 
name and data is in the National Herbarium and 
isdoubtless the type.¢ This consists of four vernal 
culms with immature panicles partly included in 
the uppermost sheaths. 
DESCRIPTION. 
Vernal plants light green; culms few to several 
in a tuft, 30 to 50 cm. high, slender, erect or ascend- 
Fig. 253.—P. scoparioides. From type z 5 aes: : : : 
SpecimeninkNationallclenbartant ing, sparsely papillose-hispid with ascending hairs 
or nearly glabrous, the upper internodes shortened; 
nodes sometimes sparsely bearded; sheaths papillose-hispid to nearly glabrous, the 
lower distant, the upper approximate, sometimes overlapping; ligules 2 to 3 mm. 
long; blades firm, ascending, 7 to 10 cm. long, 6 to 10 mm. wide, tapering to the 
2 See note on type of P. huachucae, page 215. 
