306 GEOLOGICAL SURVEY OF CANADA. 



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

 Vesicaria Ludoviciana, Macoun, Cat, L, 54, in part. 



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

 obtuse, erect upon spreading pedicels, and the cells only 2-ovuled ; 

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

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

 Valley, B.C., June 23rd, 1877. (Dawson.) 



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



Vesicaria arctica, Richards ; Macoun, Cat., I., 54, in part. 

 All the northern references belong here. 



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

 Vesicaria arctica, 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 River, Anticosti, near the sea. (Macoun.) 



59. SUBULARIA. 



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



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

 dance along the shallow margin of Sproat Lake, near Alberni on the 

 west side of Vancouver Island. (Macoun.) 



61. THLASPI. 



(8078.) T. PERPOLIATUM, Linn. ; Hooker, Student's Flora, 41. (1884.) 



Growing on a cold, wet, springy bank, Dundas Ravine, near Hamilton, 

 Ont. lt 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. VI., 75. (1890.) 

 P. graveolens, 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 



