306 GEOLOGICAL SURVEY OF CANADA. 



(3077.) L. Douglasii, Watson, Proced. Amer. Acad., XV., 255. 



Vesicaiia Ludmnciana, Macoun, Cat, I., 54, in part. 



" Eesembling Zi. Ludoviciana, but the pods smaller, obovate and very 

 obtuse, erect upon s^preuding pedicels, and the cells onlj' 2-ovuled ; 

 lower leaves sometimes ovate upon a narrow petiole." On the Colum- 

 bia Eiver east of the Cascade Mountains. {Lyall.) Similkameen 

 Vallej^ B.C., June 23rd, 1877. (Dawson.) 



(188.) L. arctica, Watson. Proced. Amer. Acad., XV., 254. 



Vincaria arctica, Richards ; JIacoun, Cat., I., 54, in part. 

 All the northern references belong here. 



Var. Purshii, Watson, Proced. Amer. Acad., XV., 254. 



Vencaria urctica, Macoun, Cat., I., 54, in part, & III., 490. 



Pod somewhat pubescent ; septum complete. Island of Anticosti, 

 Q. {Sheppard in Torr. & Gray.) Very common in the valley of 

 Jupiter Eiver, Anticosti, near the sea. {Macoun.') 



59. SUBULARIA. 



(196.) S. aquatica, Linn.; Macoun, Cat. I., 55. 



Quite common in Muskoka Lake, Ont. (JDr. Britton.) In abun- 

 dance along the shallow mai-gin of Sproat Lake, near Alberni on the 

 west side of Vancouver Island. {Macoun.) 



61. THLASPI. 



(:5078.) T. PERPOLIAT0M, Linn.; Hooker, Student's Flora, 41. (1S84.) 



Growing on a cold, wet, spring}- bank, Duudas Eavine, near Hamilton, 

 Ont. " Must be introduced, but I cannot yet make out how it got 

 where I found it." {Burgess.) 



70. POLANISIA, Raf. 



(3079.) P. trachysperma, Torr. & Gray, Man., ed. VL, 75. (1890.) 



P. graveohns, Raf. ; Macoun, Cat., I., 59, & III., 491. 



All the stations recorded under P. graveolens from the North-west 

 Territories, in Parts I. & III., pages 59 & 491 , belong to this species. The 



