HITCHCOCK AND CHASE—-NORTH AMERICAN PANICUM. 3038 
District or CotumsBiA: Chase in Kneucker Gram. Exs. 556, Hitchcock 422, 425, 
568, Kearney in 1897, Ward 2, 7,9, Williams 3, 4, 10. 
Virginia: Great Falls, Chase 3704, Four-Mile Run, Pollard 180; Norfolk, Kearney 
299, 1029; Portsmouth, Noyes 103; Virginia Beach, Pollard & Maxon in 1900; 
Munden, Mackenzie 1708; Dismal Swamp, Chase 3679, Tyler in 1905; Clifton 
Forge, Tidestrom 4. 
West Vireinia: Summers County, Morris 977; Tibbs Run, Sheldon 566; Fayette 
County, Kellerman 6901. 
Nortu Caroutna: Roanoke Island, Chase 3220; Wilmington, Hitchcock 424, 1461; 
Chapel Hill, Ashe, Chase 3051, 3064; Magnetic City, Wetherby 58; Lenoir, 
Hitchcock 565. 
SoutH Carora: Orangeburg, Hitchcock 1388; Pelzer, House 2430; Clemson 
College, House 2105; Aiken, Hitchcock 566. 
Groraia: Augusta, Cuthbert 427, 1163, Kearney 207; Stone Mountain, Eggert 44, 
Mitchcock 423, 567, 1353; Thomson, Bartlett 1458, 1504. 
Fioripa: Chattahoochee, Tracy 3629 (Field Mus. Herb.). 
Kentucky: Harlan County, Kearney 34 in part, 54 in part. 
TENNESSEE: Polk County, Chambliss 14, 88, Kearney 324; Knoxville, Smith in 
1895, Scribner in 1891; Nashville, Gattinger in 1882. 
ALABAMA: Pisgah, Chase 4473; Scottsboro, Chase 4498; Auburn, Hitchcock 1323, 
1327, Tracy 3747, 3756; Tuskegee, Ball in 1901. 
MississipP1: Enterprise, Tracy 3275; Meridian, Tracy 3268. 
184. Panicum commutatum Schult. 
Panicum nitidum majus Pursh, Fl. Amer. Sept. 1: 67. 1814. No specimen nor 
locality is cited. Among the Pursh plants in Kew Herbarium is a sheet upon which 
are mounted a specimen of P. commutatum and one of P. yadkinense. Above the first 
is a label reading ‘‘ Panicum nitidum Mx.,’’ and above the latter one reading ‘‘ Panicum 
nitidum major.’ Since Pursh’s description of the variety is ‘‘omnibus partibus 
multo majus,” it would appear that the labels have been transposed, and that the 
specimen of P. commutatum should be taken as the type of variety majus. 
Panicum nervosum Muhl.; Ell. Bot. 8. C. & Ga. 1: 122. 1816, not Lam. 1797. 
Elliott states that thé species ‘‘grows in dry shaded soils,’’ but no definite locality is 
given. The type specimen, in the Elliott Herbarium, consists of portions of two 
culms, the panicle of one destitute of spikelets. The culms are glabrous, the sheaths 
glabrous or minutely puberulent between the nerves, densely puberulent on the back 
at the summit, blades papillose-ciliate at base, otherwise glabrous. The accom- 
panying label reads: ‘‘Panicum nervosum Muhl. Hab. Car. et Geor:’’ This species 
was also described as P. nervosum by Muhlenberg,¢ but there is no specimen to rep- 
resent this in the Muhlenberg Herbarium. In this description the ligule is said to 
be ‘‘barbaeform,’’ and the species ‘‘P. aquatico® affine.’’ This throws some doubt 
on the identity of Muhlenberg’s specimen with the type of P. nervosum Muhl.; EIl. 
in Elliott’s Herbarium. But the statement that the leaves are lanceolate and ciliate 
at base, and that the panicle branches are numerous and spreading shows that the 
species has no close affinity to his P. aquaticum, as suggested by Muhlenberg. Since 
no specimen can be found by which to interpret Muhlenberg’s description, it is here 
assumed that his type is the same as Elliott’s and that the statement concerning the 
ligule is an error. 
Panicum commutatum Schult. Mant. 2: 242. 1824. Based on ‘‘P. nervosum 
Miihlenb. Descr. ub. p. 117’ [error for 116], the name presumably changed because of 
a Descr. Gram. 116. 1817. b This is Sacciolepis striata (L.) Nash. 
