9 



Panicum strigosum Mulil. ; Ell. Sk. 1 : 126. The type is well matched by No. 



3597 A. H. Curtiss. A specimen from Elliott in the Herbarium of Columbia 



University is the same. {Panicum Jongipedunculatuni Scribn.) 

 Panicum ciliatum Ell. Sk. 1 : 126. 

 Panicum ensifolium Baldw. ; Ell. Sk. 1 : 126. (Fig. 4.) This is exactly the form 



described by Ashe as Panicum cutlibertii, Joum. E. Mitch. Sci. Soc. 15:48. 



1898. The grass described by Ashe, 



Journ. E. Mitch. Sci. Soc. 1. c, 46. 



as Panicum ensifolium Baldw., is 



Panicum tenue Muhl. 

 Panicum barbulatum Michx. ; Ell. Sk. 



1 : 127. This is very distinct from 



the form considered as Panicum 



harhuJatum Michx. to-day, and is 



proposed below as a new species. 

 PANICUM SUBBARBULATUM 



Scribn. & Merrill sp. nov. {Panicum 



barbulatum of Ell. Sk. Bot. S. C. and 



Ga. 1 : 127. 1817, not Michx. Fl. Bor. 



Am. 1 : 49. 1803. 



An erect or ascending, glabrous, caespi- 

 tose perennial, 4-9 dm. high, with 

 small panicles, bearded nodes, and 

 pubescent spikelets. Culms wiry, 

 simple, or becoming branched above ; 

 nodes bearded with reflexed hairs; 

 sheaths much shorter than the inter- 

 nodes, ciliate on the margins ; ligule 

 a short ciliate ring ; leaf -blades lan- 

 ceolate, primary ones 5-6 cm. long, 

 5-8 mm. wide, spreading, the second- 

 ary ones 3-4 cm. long, 3-5 mm. wide, 

 naiTowed at the base, acute, scabrous 

 on the margins, the nerves rather 

 prominent. Panicles exserted, ovate, 

 4-7 cm. long, the branches ascending. 

 Spikelets ovate, obtuse, 2 mm. long, 

 pubescent; first glume about one- 

 fourth as long as the spikelet. 



The type of the species in the herbarium 

 of Elliott is well matched by the fol- 

 lowing specimens: 3600a A. H. Cur- 

 tiss, Sumpter County, Fla., margins 

 of pine-barren ponds; 3388 S. M. Tracy, June 13, 1897, Morrisonville, Miss. 



This species is readily distinguished from Panicum barbulatum Michx., by its 

 smaller size, smaller leaves, and panicles and larger pubescent spikelets. 



Panicum microcarpon Muhl. ; Ell. Sk. 1 ; 127= Panicum barbulatum Michx. 



Panicum nitidum V Lam. ; Ell. Sk. 1 ; \2^.-= Panicum erectifolium Nash. 



Panicum melicarium Michx. ; Ell. Sk. 1 : 128. Not in the herbarium. There is, 

 however, a specimen of Sjwrobolus junceus in the collection, evidently from 

 Muhlenberg, so labeled, but corrected to Agrostis j%i,nceiis by Elliott. 



Panicum debile Ell. Sk. 1 ; \2^. = Panicum x^errucomm Muhl. 



Fig. 4.- Panicum enttifoUiDn Baldw. a, b, c, 

 spikelets; '?, anterior view of the third 

 ghime, showing small palea; e, /, fruiting 

 glume. 



