Wheeler: THE FLORA OF THE RED RIVER VALLEY. 583 



PARNASSIACE.E. 



Parnassia caroliniana Michx. Fl. Bor. Am. i : 184. 1803. 



Coll. : MacMillan & Skinner 94, Maple lake. 

 Parnassia palustris L. Sp. PL 273. 1753. 



Coll. : Ballard 2512, Fergus Falls. 



ROSACES. 



Spiraea salicifolia L. Sp. PI. 489. 1753. 



Coll. : Ballard 2706, Northcote ; MacMillan & Skinner 

 156, Maple lake. 



Rubus strigosus MICHX. Fl. Bor. Am. i : 297. 1803. 

 Coll. : MacMillan & Skinner 3, Crookston. 



Potentilla leucocarpa RYDBERG, in Britton & Brown, 111. Fl. 2 : 



212. f. I Q2J.. 1897. 



Coll.: Ballard 2641, St. Vincent; MacMillan & Skinner 

 323, Crookston. 



Potentilla monspeliensis L. Sp. PL 499. 1753. 



Coll. : Ballard 2515, Fergus Falls ; 2728, Kennedy ; Mac- 

 Millan and Skinner 72, 291, Crookston. 



Potentilla pennsylvanica strigosa PURSH, FL Am. Sept. 356. 



1814. 



Coll.: MacMillan & Skinner 40, Crookston; 252 Red 

 Lake Falls ; 374, Holmes. 



Potentilla effusa DOUGL. ; Lehm. Stirp. Pug. 2: 8. 1830. 



Coll. : MacMillan & Skinner 385, Holmes. 

 No previous authentic collection reported from Minnesota. 



Argentina anserina (L.) RYDBERG, Mem. Dept. Bot. Columbia 



Univ. 2 : 159. pi. 98. 1898. 



Coll. : Ballard 2574, St. Vincent; 2626, Humboldt ; Mac- 

 Millan & Skinner 191, 221, Crookston. 



Comarum palustre L. Sp. PL 502. 1753. 



Coll. : MacMillan & Skinner 143, Maple lake. 



Drymocallis arguta (PURSH) RYDBERG, Mem. Dept. Bot. Co- 

 lumbia Univ. 2 : 192. pi. 102. 1898. 

 Coll. : MacMillan & Skinner 90, Dugdale ; 251, Crookston ; 

 377, Holmes. 



