56 GEOLOGICAL SURVEY OP CANADA. 



60. CAPSELLA, Vent. (SHEPHERD'S PURSE.) 



(197.) C. Bursa-pastoris, Moench. Gray, Manual, 73. 

 Tlilaspi Burm-piistoris, Linn. Pursh., 435. 

 An introduced weed that is found in profusion wherever there is cul- 

 tivation- from the Atlantic to the Pacific. South Greenland. (Hook. 

 Arct. PL) 



(198.) C. divaricata, Walp. 



IIiliiii'iKilohm dipurlcatus, Nutt. Torr. & Gray, Fl. I., 117. 

 H. rtrchts, Nutt. Mat'oun'.s Cat., No. 1S6. 

 Near Oregon Jack's, above Spence's Bridge, B.C., 1875. 



61. THLASPI,Tourn. (PENNY-CRESS.) 



(199.) T. arvense, Linn. Mithridatc Mustard; 



Naturalized from Europe. Abundant in many parts of Quebec; 

 scarce in Ontario ; hut a real pest in Manitoba and around all the 

 Hudson Bay Co. Posts in the North-west Territory. This weed has 

 attracted much attention already in Manitoba. 



(200.) T. alpestre, Linn. Hook. PI. L, 58. Torr. & Gray, PI. I., 114. 



T. iiuiiitiiiium, Hook. Fl. I., F>S. Torr. & Gray, Fl. I., 113. 



T. c.ochlmrifnrin,', DC. Hook. Fl. I., .58. Torr. & Gray, Fl. I., 113. 



Shoi'os of the Arctic Sea to the westward and eastward of the Mac- 

 kenzie Kivcr. (Franklin <{• Back.) 



62. SMELOWSKIA, C. A. Meyer. 



(201.) S. calycina, 0. A. Meyer. 



ITulcMnsifi riilyrimi, Desv. Hook. Fl. I., 58. Torr. & Gray Fl. I., 114. 



On the Eocky Mountains, Lat. 52°-57° (Brummond.) Eocky Moun- 

 tains, in the Bow Eiver Pass. (^Bourgeau.) Summit of South Koo- 

 tanie Pass. (Dawson.) Kotzebuo Sound and Cape Kurzen stern. 

 (Rothr. Alask.) 



63. LEPIDIUM, Linn. (PEPPER-WORT.) 



(202.) L. sativum, Linn. Pepper-grass. 



Escaped from cultivation. On waste heaps, Ste. Anne des Monts, 

 Gaspe, Q. Frequent close to old Fort Garry, Winnipeg, Man. 



