Panicum philadelpliicum to be the earliest tenable name for this species, as 

 the description applies to the form here referred to that species, and, 

 moreover, the statement is made by Nees that he had seen specimens in 

 Schreber's Herbai'ium (which were doubtless from Muhlenberg), and at the 

 same time he cites Panicum capillare minus Muhl. , as a synonym. For the 

 form referred by Mr. Nash to Panicum minus we propose the following : 

 Panicum minimum (Engel.) n. comb. {Panicum, capillare minimum Engel. ; 

 Scribn. Tenn. Agr. Exp. Sta. Bnl. 7:44, Jig. 40, 1894; P. minus Nash, Bui. 

 Torr. Bot. Club, 22:421. 1895, not P. capillare minor Muhl. Descr.- 124. 1817.) 



" 184 Panicum M. 116 a, N. Angl." This is described on page 37 of the 



" Descriptio " without name. Roemer & Schultes gave it the name of Pani- 

 cum spretum. Mantissa, 2 : 248. 1824. This is exactly Panicum eatoni Nash, 

 Bui. Torr. Bot. Club, 25 : 84. 1898, and should be referred to Panicum niti- 

 dum Lam. (See Bui. 24, Division of Agrostology.) 



"185 Panicum aquaticum M. 116 b, Elliott S8" ^Panicum gibbum Ell. 



"186 Panicum ciliatum M. 117, Elliott i80"^Panicum ciliatum Ell. 



" 187 Panicum strigosum M. 117, Elliott 497." This species is in the same rela- 

 tive position in Muhlenberg's Herbarium as is the description of Panicum 

 cartilagineum in his ' ' Descriptio. " There is in this cover of Panicum strigo- 

 sum one specimen of Panicum nashianum Scribn., one specimen of Panicum 

 scabriusculum Ell., and several specimens labeled '' Panicuyn aureum," which 

 are now referred to Panicum laxiflorum Lam. Panicum nashianum 

 Scribn. = ? P. cartilagineum Muhl. 



"188 Panicum, guinea-grass polyg. " = PamciM>i maximum Jacq. 



"189 " = 188. 



"190 Panicum near enslini. " This cover contains both Panicum baldwinii Nutt. 

 and P. tvrightianum Scribn. 



"191 " This cover contains several forms of Panicum commutatum 



Schultes. 



"192 Panicum parvulum M. 110, 6." In this cover are several unrecognizable 

 scraps, and also three plants with a label attached, bearing the name Pani- 

 cum deustum. We consider this to be the type of Panicum tenue Muhl. Descr. 

 118, and it is exactly identical with Panicum trifolium Nash. The synonymy 

 of this species is as follows : 



Panicum tenue Muhl. Descr. 118. 1817. {Panicum deustum Brickell et Enslin, 

 1. c. 119, as synonym; Panicum Won R. & S. Mant. 2: 250. 1824; Panicum 

 macrum Kuuth, Rev. Gram. 1 : 40. 1835; Panicum trifolium Nash, Bui. 

 Torr. Bot. Club, 26: 580. 1899.) Panicum tenue Muhl., was changed by 

 Roemer & Schultes and by Kuntli because of an earlier use of the name 

 by Roxburgh, Catalog. 1813, but we believe this earlier publication is a 

 nomen nudum, the description not being published until the issue of his 

 Flora Indica 1 : 306. 1820, in which case Muhlenberg's name Panicum tenue 

 should be retained. It is possible that this species is true Panicum ensifolium 

 Baldw. ex Ell. Sk. Bot. S. C. and Ga. 1 : 126. 1817. A careful search in the 

 herbarium of the Academy of Natural Sciences of Philadelphia, revealed no 

 Panicum ensifolium from Baldwin. 



"193 Panicum simplici affini Baldw. 866 Milium" = 1 



"194 Panicum dubia Baldw. " This cover contains unrecognizable scraps of 

 several species. 



