Wheeler: THE FLORA OF THE RED RIVER VALLEY. 583 
PARNASSIACEZ. 
Parnassia caroliniana Michx. Fl. Bor. Am. 1: 184. 1803. 
Coll.: MacMillan & Skinner 94, Maple lake. 
Parnassia palustris L. Sp. Pl. 273. 1753. 
Coll.: Ballard 2512, Fergus Falls. 
ROSACEZ. 
Spirea salicifolia L. Sp. Pl. 489. 1753. 
Coll.: Ballard 2706, Northcote; MacMillan & Skinner 
156, Maple lake. 
Rubus strigosus Micux. Fl. Bor. Am. 1: 297. 1803. 
Coll.: MacMillan & Skinner 3, Crookston. 
Potentilla leucocarpa RypBERG, in Britton & Brown, Ill. Fl. 2: 
2E2. f; 1024s: 1807. 
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 Pursn, Fl. Am. Sept. 356. 
1814. 
Coll.: MacMillan & Skinner 40, Crookston; 252 Red 
Lake Falls; 374, Holmes. 
Potentilla effusa Douci.; Lehm. Stirp. Pug. 2: 8. 1830. 
Coll.: MacMillan & Skinner 385, Holmes. 
No previous authentic collection reported from Minnesota. 
Argentina anserina (L.) Ryppere, Mem. Dept. Bot. Columbia 
Wniv. 22 159. Ai 98.) 1598. 
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) Rypserc, Mem. Dept. Bot. Co- 
lumbia Univ. 2: 192. fl. ro2. 1808. 
Coll. : MacMillan & Skinner go, Dugdale ; 251, Crookston ; 
377, Holmes. 
