1911] Hitchcock,— Type of the Genus Panicum 175 - 
Dr. Nieuwland states concerning Setaria Beauv. as a homonym, 
“Scribner recognizing this, called the genus Chaetochloa, but it had 
already been given a name, Ixophorus by Schlechtendal in 1861-62.” 
I fear that Dr. Nieuwland did not read what Schlechtendal says, for 
the latter in proposing the genus Ixophorus (based on Urochloa uni- 
seta Presl), shows how it differs from Setaria. Schlechtendal’s 
article! was published in 1862, not ‘‘1861-1862.” 
I would call attention to what might be considered a defect in 
technique, namely, basing the new name Chasea on ‘‘Panicum of 
the authors not of Linnaeus or only in part.” Panicum ‘‘of the 
authors” is very indefinite. The reader is led to infer the applica- 
tion of the name from the species included. It is especially misleading 
since half of the species mentioned were included in Panicum by 
Linnaeus. It would have been more satisfactory, or at least more 
definite, if the author had indicated a type species, or based the name 
Chasea upon the Panicum of a definite author. 
Dr. Nieuwland transfers certain species of Chaetochloa to Panicum 
and other species of Panicum to Chasea. Panicum occidentale Nieuw]. 
(Chaetochloa occidentalis Nash), is invalidated by Panicum occidentale 
Scribn. 1899. Panicum versicolor Nieuwl., based on Chaetochloa versi- 
color Bicknell, is invalidated by Panicum versicolor Doell, 1877. 
Chasea pubescens Nieuw]. is based on Panicum pubescens Lam. But 
as has been shown in another place,? the name to be used for this 
species, under Panicum, is P. scoparium Lam. Chasea prolifera 
Nieuwl., based on Panicum proliferum Lam., is untenable because 
the latter name is a synonym of P. miliare Lam. The author probably 
intended to transfer P. dichotomiflorum Michx. to which the name P. 
proliferum has been applied by some American botanists. 
Another name, Chasea violacea Nieuwl., based on ‘‘Panicum viola- 
ceum Linn.” is unfortunate, as there is no such species. There is a 
Panicum violaceum Lam., which is a species of Pennisetum. It is 
possible the author meant Panicum miliaceum. L. but the difference | 
can scarcely be explained as a typographical error. 
It is well to mention certain variations in methods of technique 
in the bibliographic citations. For example, ‘‘Panicum virgatum 
Linn., 1753”; when the author’s name is abbreviated it is followed 
b 
1 Linnaea 31: 420. 1862. 
? Contr. Nat. Herb. 15: 294. 1910. 
