40 



also in the Gray Herbarium, Cambridge; St. Croix, Eggers 1876; St. Thomas, 

 Eggers 1876 and 1890; Gordon Town, 829 Hart 1886. Mexico: Monterey, Nuevo 

 Leon, 1968 Pringle 1888. 



The specimen from New Mexico, 438 Wooton 1897, is not typical and differs from 

 the other specimens cited in having the slieaths somewhat compressed, sUghtly 

 keeled, the setae longer, and the panicle obtuse at the apex, not long-attenuate. 



In H. B. K. Nov. Gen. & Sp. PL 1: 110 (1815) this species is cited as a synonym of 

 Setaria macrostachya, but from a careful comparison of the original descriptions, 

 authentic specimens, and the literature on the subject they appear to be very 

 distinct. Nees^ says that Swartz's specimens, which he has seen in the Schreber 

 Herbariiun, differ from S. macrostachya H. B. K. in having the second glume 

 5-nerved, narrower, pubescent leaves, and lax, elongated, and attenuated laanicles. 

 Trinius^ says that the details of Panicuin setosum^ do not belong to this species, 

 but to P. onurum, which has been confounded with it; hence the confusion 

 regarding this species. 



NORTH AMERICAN GRASSES WHICH HAVE BEEN WRONGLY REFERRED TO THE 



GENUS CH^ETOCHLOA (SETARIA). 



Setaria auriculata Fourn. Mex. PI. Enum. Gram. 43 (1886) =Setariopsis auriculata 



(Fourn.) Scribn. 

 Setaria cirrhosa Fourn. Mex. PI. Enum. Gram. 43 (1886)=Panicuin cirrhosum 



(Fourn.) n. comb. 

 Setaria eflPusa (Fourn.) Mex. PI. Enum. Gram. 42 (1886) =Pani cum mexicanum 



nom. nov. 

 Setaria jurg-ensenii Fourn. Mex. PI. Enum. Gram. 42 (1886) =Panicuin jurgen- 



senii (Fourn.) n. comb. 

 Setaria latiglumis Vasey Bui. Torr. Bot. Club. 13: 229 (1886) =^Setariopsis latiglumis 



(Vasey) Scribn. 

 Setaria paniculifera (Steud.) Fourn. Mex. PI. Enum. Gram. 42 {188Q)=Panicum. 



paniculiferum Steud. Syn. Gram. 54. 1855. 

 Setaria pauciseta Vasey Bui. Torr. Bot. Club 13: 230 (1886) =Setariopsis auriculata 



(Fourn.) Scribn. 

 Setaria schiedeana (Schlecht.) Fourn. Mex. PI. Enum. Gram. 43 {l88Q)=Ixophorus 



schiedeana Schlecht. Linngea 3 1 : 421 (1861) . 

 Setaria sulcata Raddi Agrost. Bras. bQ=^Paiiicum sulcatum Aubl. 

 Setaria uniseta (Presl) Fourn. Mex. PI. Enum. Gram. 43 (1886) =Ixophorus uniseius 



Schlecht. Linngea 31:421 (1861). 

 Chamseraphis uniseta of Beal's Grasses of N. Am. 2: 158 (1896) is Chselochloa 



grisebachii. 



DOUBTFUL AND UNKNOWN SPECIES CREDITED TO NORTH AMERICA. 



Setaria affinis Schrad. in R. & S. Mant. 2 : 276 (1824) , Described by Muhlenberg 

 in Desc. Gram. 101 (1817) without name =(?) Chsetochloa corrugata parviflora. 

 Southern States. 



Setaria ambigua Schrad. Linngea 12: 430 (1838). Type material collected in 

 Texas=(?) Chxtochloa hnherbis geniculala. 



Setaria biconvexa Grisebach Fl. Brit. W. Ind. 555 (1864). Scarcely distinct 

 from C. onurus. Spikelets from Grisebach's type specimen sent from Kew 

 Herbarium agree almost perfectly with those of C. onurus. S. biconvexa is 

 described as having the second glume 7-nerved as a distinguishing character 

 from the 9 to 11 nerved second glume of K onurus, but the spikelets from 

 Grisebach's type have the second glume 9-nerved! 



1 Agrost. Bras. 2: 246. ^ Mem. Acad. Sci. St. Petersb.. ser. 6, 3: 138, 139. 



'■" Trin. Icon. t. 95. 



