390 GEOLOGICAL SUEVEY OF CANADA. 



Yale, B.C., May, 1889. We agree with Mr. Sciibner in making this a 

 var. of A. geniculatits. (^Macoun.) Prof. Scribner remarks of var. 

 robiistus, Vasey, that it is just a stout grown plant of the species. 



685. ARISTIDA. 



(2736.) A. fasciculata, Torr. 



A. purpurea, Kutt. ; Macoun, Cat. IV., 190 = {A. purpurea, Nutt., var. = 

 No. 336, Scribner, Montana Coll.) 



Abundant at Spence's Bridge. B.C. 1889. (^Macoun.) 

 686. STIPA. 



(2739.) S. Macounii, Scribner, MS. 



S. Richardsonii, Macoun, Cat. IV., 190. 



" This is the Stipa Bichardsonii of Gray's Manual, but 1 think not of 

 Link. Your S. Sichardsonii, var. major, is, I believe, Stijya Richardsonii, 

 Link. I look upon the eastern plant, with its smaller panicle and 

 spikelete, as a distinct species, and beg leave to name it S. Macounii." 

 (Scribner.) This species includes all the references under S. Richard- 

 sonii in Part IV. (^Macoun.') 



(3202.) S. Richardsonii, Link. 



S. Richardsonii, var. major, Macoun, Cat IV., 191. 



Not uncommon along the north shore of Shuswap Lake, near Scotch 

 Creek, B.C., June, 1889. {Macoun.) 



(2740.) S. spartea, Trin. ; Macoun, Cat. IV., 191. 



Abundant in many places on the hills around Kamloopsand towards 

 Nicola Lake, June, 1889. (Macoun.) 



(2742.) S. Columbiana, Macoun, Cat. IV., 191. 



Distinguished from S. viriUula by its acute callus and short palea, 

 this being scarcely half as long as ite glume. (Scribner.) Not 

 uncommon in tufts on the flats at Kamloops, B.C., June, 1889. (Macoun.) 



S. ? (No. 18.) 



"This =^ 613, Tweedy, 1885, and referred by me loS. viridula, from 

 which I now think it is distinct. Must study it more. Perhaps it is 

 not separable from S. Columbiana." (Scribner.) My Yale specimens 



