236 THE AMERICAN MIDLAND NATURALIST 



Arabis ovata (Pursh) Poir. Encycl. Suppl. V:587. A. hirsuta Hook., 

 not Scop. 



1269. Turritis Drummondii (A. Gray) Lunell Arabis Drum- 

 mondii A. Gray, Proc. Am. Acad. VI: 187. Gray Man. V.69. 

 A. confinis Wats. Proc. Am. Acad. XXII :466. Devils Lake. 



524. T. Drummondii var. brachycarpa (Gray Man. V:69). 

 A. confinis var. brachycarpa Wats. & Coult. in Gray Man. VI 167. 

 This does not grow at Devils Lake, but is reported from other 

 parts of the state. A. dakotica Greene is another relative unknown 

 to us. 



Insert after no. 529, Brassica campestris: 



1270. Brassica juncea (Linn.) Corson, Bull. Soc. Bot. France 

 6:609, (1859.) 



Sinapis juncea Linn. Sp. PI. 668. (1753). Leeds. 

 STANLEYA Nutt. Gen. 2:71. (19 18). 



1 27 1. Stanleya pinnata (Pursh) Britt. Trans. N. Y. Acad. 

 Sci. 8:62, (1888). Dakota ace. to Nels. Man. 1909. 



1272. Stanleya glauca Rydb. Bull. Torr. Bot. Club 236. 

 (1902). N. D. ace. to Rydb. Fl. R. M. 1917. 



Insert after no. 136, Peritoma serrulatum: 



1273. Peritoma serrulatum var. clavatum Lunell, var nov. 

 Siliquae crassae, clavatae, turgidae, Petala integra neque 



3-dentata. 



Pods thick, swelled, clavate, Petals entire, not 3-toothed. 

 York, Aug. 9, and Sept. 2. 191 8. 



Insert after no. 540. Parnassia palustris: 



1274. Parnassia montanensis Fern. & Rydb. in N. Amer. 

 Fl. XXII 79. (1908). 



Some of our plants no doubt belong here, while others exhibit 

 characters of both this species and P. palustris, 



Insert next after no. 551, Pentaphyllum concinnum: 



1275. Pentaphyllum divisum (Rydb.) Lunell. Potcntilla 

 divisa Rydb. Fl. R. M. 416. (1917). 



Potentilla concinna divisa Rydb. Bull Torr. Bot. Club 23:431. 

 Leeds. 



1276. Potentilla camporum Rydb. in N. Am. Fl. XXII :t, 19. 

 (1908). Butte. 



572. Chamaerhodos Nuttallii Pickering ex Rydb. in N. Am. 

 Fl. XXII ^77. (1908). C. erecta Hook, not Bunge. 



Insert next before no. 585, Eupatoriuni Brittonianum: 



