106 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
A specimen from Nicholson, Mississippi, Kearney 380, with spreading panicle 
branches and spikelets only 2 mm. long is doubtfully referred here. 
DISTRIBUTION, 
Moist sandy ground, Rhode Island and Connecticut to Florida and west to Texas, 
mostly near the coast. 
Connecticut: Groton, Bissell 11596, Graves 248, 256. 
Ruope Istanp: Shannock, Moore in 1896. 
New York: New York, Bicknell in 1896; Long Island, Miller in 1873 (both in 
Hitchcock Herb.). 
New Jersey: Atsion, Chase 3530; without locality, Holmes in 1890. 
PENNSYLVANIA: Philadelphia, Saunders in 1898, Smith. 
DELAWARE: Ellendale, Commons 224, 343, 344. 
MaryLanpb: Berlin, Novik 421. 
District oF CoLumBIA: Kearney in 
1897, Steele in 1897 and 1898. 
VirGINIA: Cape Henry, Hitchcock 
446; Dismal Swamp, Chase 
3662; Virginia Beach, Kearney 
2025. 
NortH Carona: Newbern, 
Kearney 2242; Wilmington, 
Biltmore Herb. 3627, Chase 
4564, Hitchcock 447; eastern 
North Carolina, Ashe; West 
Raleigh, Stanton 1270; middle Fig. 99.—Distribution of P. longifolium. 
North Carolina, Ashe. 
Fiorma: Jacksonville, Curtiss 5576B; Milton, Chase 4318; Bayhead, Combs 644; 
Chipley, Combs 571; Gainesville, Chase 4225; Crystal, Combs 1010; Grasmere, 
Combs 1154, 1168; Bartow, Combs 11804, 1235. 
ALABAMA: Tuskegee, Carver 100, Cullman, Eggert in 1897, Mohr in 1886; Mobile, 
Mohr. ; 
Mississippt: Biloxi, Chase 4346, Kearney 220, Tracy 3627, 3860, 6507a; Fontain- 
bleau, Tracy 3858, 3859; Ship Island, Tracy 4563; Waynesboro, Kearney 116. 
Louisiana: Without locality, [fale (Gray Herb.). 
Texas: Jefferson, Plank 31; without locality, Nealley in 1885, Wright. 
54. Panicum combsii Scribn. & Ball. 
Panicum combsii Scribn. & Ball, U. 8. Dept. Agr. Div. Agrost. Bull, 24: 42. f. 76. 
1901. ‘Type collected by Robert Combs, No. 583, for 
whom the species is named, in damp, fertile flat woods at 
Chipley, Washington County, Florida, August 20, 1898.” 
The type specimen, in the National Horbarium, is a tuft of 
several culms with mature panicles. 
DESCRIPTION. 
Plants like P. longifolium in habit; leaves somewhat more 
clustered at base; sheaths glabrous or pubescent along the 
margin toward the summit; ligules less than 1 mm. long, 
Fic. 100.—P. combsii. From Sometimes a few longer hairs at the margin; blades aver- 
type specimen. aging shorter, rarely 25 cm. long, glabrous or pilose on 
the upper surface at the base, usually sparsely so; lateral 
panicles wanting or but one or two, terminal panicles 12 to 20 cm. long, two-thirds 
to three-fourths as wide, few-flowered, the slender, scattered branches ascending; 
