HITCHCOCK AND CHASE-—NORTH AMERICAN PANICUM. 299 
axis glabrous or pubescent, often viscid, the flexuous branches ascending, spikelet- 
bearing from near the base; spikelets 2.3 to 2.6 mm. long, 1.1 to 1.3 mm. wide, ovate, 
pointed, glabrous or obscurely puberulent; first glume less than one-sixth as long as 
the spikelet; second glume and sterile lemma 
strongly nerved, exceeding the fruit and form- 
ing an abrupt point beyond it; fruit 1.8 mm. 
long, 1 mm. wide, elliptic. 
Autumnal form erect, branching from the mid- 
dle and upper nodes, the branches appressed, 
somewhat longer than the internodes, finally 
bearing fascicled branchlets and forming dense 
oblong masses along the upper part of the primary 
culm, the sheaths, especially the later ones, 
densely papillose-hirsute, the flat, reduced blades 
ovate-lanceolate, reduced in length much more 
than in width, the panicles partly or entirely inclosed in the sheaths. 
This species is very variable in the amount of pubescence; even on the same plant 
are often found glabrous and hispid sheaths or glabrous and pubescent blades. Other- 
wise it is an unusually uniform species. 
Fig, 338.—P. scabriusculum. From 
type specimen, 
DISTRIBUTION. 
Moist ground, especially along ditches, streams, and swamps, near the coast, south- 
east Virginia to Florida and eastern Texas. 
New Jersey: Atlantic City, Zong in 1909 (Phila. Acad. Herb.). 
Vireinia: Norfolk County, Aearney 1798; Dismal Swamp, Tyler in 1905. 
NortH Carona: Roanoke Is- 
land, Chase 3235; Wilsons 
Mills, Chase 3101; Wilmington, 
Chase 4600, Hitchcock 595, 
Kearney 270. 
South Carona: Orangeburg, 
IMitchcock 438, 1378; Aiken, 
Ravenel. 
GeorctaA: Bullock County, [Harper 
881; Leslie, Harper 410. 
Froripa: Jacksonville, Curtiss Q, 
4878; Duval County, Curtiss Fig. 339,—Distribution of P. scabriusculum. 
3610; Baldwin, Combs 67; 
Washington, Combs 616; without locality, Chapman. 
ALABAMA: Flomaton, [Hitchcock 1052, Tracy 3643; Mobile, Kearney 27, 39; Mobile 
County, Mohr in 1888. 
MississrePI: Beauvoir, Tracy 4617; Biloxi, Tracy 4569. 
Loutstana: New Orleans, Drwmmond (Gray Herb.). 
Texas: Nona, Nealley 38 in 1892; without locality, Nealley in 1885, Wright (Gray 
Herb.). 
182. Panicum cryptanthum Ashe. 
Panicum cryptanthum Ashe, N.C. Agr. Exp. Sta. Bull.175: 115.1900.  ‘‘ Collected 
by the writer in swamps at Wilson’s Mill, N. C., in July 1897.’’ The type, in Ashe’s 
herbarium, is a specimen arbitrarily chosen from among four bearing the label, ‘‘ Wil- 
son’s Mill, N. C. July 15, 1897. W. W. Ashe collector,’”’ and with the additional 
data, ‘‘In a small swamp on north side of railroad about one mile west of the station.”’ 
The name does not appear upon any of the sheets, but these plants agree with the 
