200 I'OACK.K. 



tcrnipfod. 2-li ctii. 1<»ii^'. I iiini. wide; i'iivh I.Tmh-Icsh iu Icii^'tli, 

 rnvcrrd with HpikdctH. Kmpty ;:limn's rolorlcss or li<,'lit lojul-i-olor. 

 I'fjual or sii1>('i|iial, I -mrvi'd, ovate, almost iiciitc, I nun. Ion;.': Iloiot 

 with II cuIlnH, Hniootii. Ilorai ^durnc ovutr, acute. IJ-nerved, l.T turn, 

 ion;;; ])aU'ii as Ion;; as ita ;;Iurne, l»roadly oval, acnto. 



(h'c;:oti. Iloirrll; Mexico (Cliilmaliua), /*i'in(/h' 4\H. 



A line low ^'rass tilling much tho place in grazing of .S'. asprri- 

 fob us. 



Ko(!ky Mountain rcirion. 



Var, flliformis nov. var. Tulni 10-12 cm. long, cxsortcd for 

 nearly half its length: panicle much reduced, 2 I'ln. long. 



Montana. Williams: I'tah. .lours. 



i>2. S. IvDicis (L.) |{. Hr. I'rodr. 1 : 17(» (ISIO). Smit- 

 ORAss. .\f/ri)slis Indu'ii L. Sj). PI. 015 (1753). A. vliniijittn Lam. 

 111. 1: lt;-i (I :!))). 



An eri'ct rohust grass, .'JO-.OO cm. high. Sheaths long, .some- 

 times ciliato at tho throat: ligule very short: blades chielly at the 

 base of tho culms, smooth helow. scahrid above, tho.se of sterile 

 shoots extending to the base of the ])anicle, 2-4 mm. wide at tho 

 base, tapering into tine pnint.s. those of the culm 2-3 in number. 

 Panichi spikeliko, but little exserted, .sometimes internii)ted, 8-20 

 cm. long and 3-0 mm. diam.. or sometimes with diverging rays 1 

 cm. long. Si)ikelot3 very numerou.s and crowded: empty glumes 

 almost hyaliiu', obtuse, 1-nerved. first 0.5-0.7 mm. long, second 1 

 mm. long: floral glume oval, concave. 1-3-nerved, 1.7 mm. long; 

 palea nearly as long as its glume, 2-nerved. Grain broadly obo- 

 void, pericarp often evanescent. 



Hentham in Flora Australiensis has been followed in the de- 

 scrii)tion to some extent. 



Florida. Cvrtiss 3383. 



It was introduced from India, and has become naturalized in 

 many warm countries, such as Florida, tiie Carolinas, etc. It is 

 called Snnif-f/rass in the South, as smut very often develops on it. 

 The grass is esteemed for pasture and mowing when not too old. 

 ^ 23. S. serotinus (Torr.) A. Gray, Man. Ed. 1:577 (1848). 

 '\ Agrostis serotina Torr. Flor. U. S. 1:88 (1824). Vilfa serotina 



