304 CONTRIBUTIONS FEOM THE NATIONAL HERBARIUM. 



P. nervosum Lam. 1797. Muhlenberg's description, including " ligula barbiformis, " 

 is copied. It is evident that Schultes had not seen a specimen of this. a 



Panicum enslini Trin. Gram. Pan. 230. 1826. "Am. [erica] bor.[ealis] (Trattin- 

 ick, e collect. Enslini)." The type, in the Trinius Herbarium, is the vernal form. 

 The accompanying label in Trinius's hand reads "Panicum Enslini m. (An Pan. 

 tenue Muhl. quaerit Nees ab Es.) ab Enslino in Am. bor. 1. dt. sine nom. cl. Trattin- 

 ick Wiennae 1820." There is a duplicate specimen in the Vienna Herbarium. Judg- 

 ing from a small portion of the type sent to the National Herbarium from the Trinius 

 Herbarium & this was thought to be the same as P. equilaterale, but from subsequent 

 study of the somewhat fragmentary entire specimen and of the duplicate it appears 

 to be a narrow-leaved form of P. commutatum. 



Panicum polyneuron Steud. Syn. PI. Glum. 1 : 91. 1854. Based on "P. nervosum 

 Muhlbrg. Gram. p. 116, Torr. Fl. N. Am. I. 143." The description, however, is a 

 translation of that given in Torrey's Florae for P. nervosum and applies to the species 

 described as P. macrocarpon LeConte,^ which proves to be the true P. latifolium L. 

 On the type sheet of P. macrocarpon LeOonte, in Columbia University Herbarium, 

 is written in Torrey's hand "(P. nervosum Muhl. T.)." [T. probably stands for 

 Torrey, that is, P. nervosum Muhl. according to Torrey.] 



Panicum commutatum minor[us] Vasey, U. S. Dept. Agr. Div. Bot. Bull. 8: 34. 

 1889. "Southern States." The only specimen marked with this name in Vasey 's 

 writing is found in Nash's herbarium, having been obtained through exchange 

 of duplicates with Dr. Vasey. This is a small, immature, vernal specimen with glab- 

 rous culms, collected by Ravenel at Aiken, S. C, in 1867, and is labeled in Vasey's 

 hand "P. commutatum var. minor Vasey." 



Panicum commutatum latifolium Scribn. in Kearney, Bull. Torrey Club 20 : 476. 

 1893. This is described in a single line in a footnote to notes on plants collected 

 on Pine Mountain, southeastern Kentucky, in August, 1893, as follows: "Leaves very 

 broad, panicle large, the widely spreading branches few-flowered." On page 479 

 this name is listed as Kearney no. 299. In the Scribner Herbarium is a specimen of 

 P. commutatum with unusually wide blades and large panicles, which is probably the 

 plant referred to, although there are no data with the specimen. « The sheet is 

 marked P. latifolium Ell., through which is drawn a line and below in Scribner's 

 hand is written " Panicum commutatum Schultes." 



Panicum commelinaefolium Ashe, Journ. Elisha Mitchell Soc. 15: 29. 1898, not 

 Rudge, 1805. "Based on material collected by Dr. J. K. Small near Stone Mt., Ga., 

 Aug. 1-6, 1895." The type, in the Biltmore Herbarium, consists of several late ver. 

 nal culms beginning to branch, with short internodes and short-exserted panicles. 

 The culms, sheaths, and both surfaces of the blades are puberulent, the blades 1.7 to 

 2.5 cm. wide, the spikelets 2.8 mm. long. 



Panicum currani Ashe, Journ. Elisha Mitchell Soc. 15: 113. 1899. Based on 

 P. commelinaefolium Ashe, not Kunth. 



Panicum subsimplex Ashe, N. C. Agr. Exp. Sta. Bull. 175: 115. 1900. "Col- 

 lected by Mr. A. Commons in dry rocky woods near Wilmington, Del., in August." 

 The type, in Ashe's herbarium, consists of autumnal culms, with broadly elliptic, 

 somewhat falcate blades 1.5 to 2.5 cm. wide, and small, few-flowered panicles, over- 

 topped by the upper blades. 



a Schultes seems not to have had Elliott's Botany of South Carolina and Georgia, 

 since where he refers to this work (Mant. 2 : 256-257) he does so on the authority of 

 Nuttall's Genera Plantarum. 



b See Hitchcock, Bot. Gaz. 41 : 65. 1906. 



cFL North. & Mid. U. S. 143. 1823. 



<* LeConte in Torr. Cat. PI. N. Y. 91. 1819. 



« Other Kearney specimens in the Scribner Herbarium are often marked with 

 collector's name and number only, without other data. 



