200 



siderably larger, and the primary panicle branches not remaining 

 contracted, but spreading at once. 



As this grass is apparently quite common, there may be an 

 older name than the above, but up to the present search has 

 failed to reveal it. When a proper disposition is made of the 

 species of Elliott and Michaux, and some of the other early 

 southern botanists, some name among them may be found to 

 apply to this plant. There can be no doubt, however, as to this 

 grass being the P. neiirantJmm of Grisebach, for, as stated above, 

 it exactly matches the form upon which he based the species. 

 Panicum angustifolium Ell. Bot. S. C. & Ga. i : 129. 1817. 



P. neiirantliiivi van ramosuDi Griseb. Cat. PI. Cub. 232. 1866. 



As stated above, this appears to be clearly distinct from P. 

 neurantJiiaii Grisebach. The specimen on which Grisebach based 

 his variety ramosum, no. 3454 of Wright's Cuban Collection, 

 matches the late and much branched condition of Elliott's P. ati- 

 gustifoliiwi, well represented by Curtiss' nos. 4028 and 4678. In 

 addition to those cited already, I would refer the following to this 

 species : 



Vasey, Norfolk, Va., in pine woods, 1884. 



Ravenal, Aiken, S. C, June i, 1867. 



M. A. Curtiss, N. C. 



A. H. Curtiss, Florida, Duval Co., no. 3583* ; Jacksonville, 

 nos. 4028 and 4678. 



Nash, Eustis, Florida, 1894, nos. 319, 560, 598, 926, 1226, 

 1425 and 1436; 1895, no. 1856. 



S. M. Tracy, Mississippi, Crystal Springs, no. 117; Biloxi, no. 

 3091. 



Langlois, Louisiana, October i, 1890. 



Panicum polycaulon n. sp. 



Plant yellowish green, with the habit of P. ciliatnin Ell., 

 smooth and glabrous, excepting the margins of the sheaths and 

 leaves, and the axis of the panicle which is sparingly pilose. 

 Culms densely caespitose, the upper portion naked, 2 dm. tall or 

 less, erect, simple, or at length somewhat branched ; sheaths 

 coarsely striate, ciliate on their margins, the lower loose, 2.5 cm. 

 long or less, the uppermost one longer than the remainder ; 

 ligule a ring of very short hairs ; leaves erect or ascending, nar- 

 rowly oblong-lanceolate, 2-7 cm. long, 2-8 mm. wide, somewhat 

 narrowed toward the rounded base, acuminate at the ape.x, ciliate 



