164 GEOLOGICAL SUUVEY OP CANADA. 



situations by the sides of streams. (Memies.) Veiy common on Van- 

 couver Island and in the valley of the Lower Fraser. (^Macoun, Hill 

 ds Dawson.) 



(761.) R. aureum, Piirsh. 



On the west fork of Milk River, south of Cypress Hills. (JDawson.) 



XXXIV. CRASSULAOE^. Orpine Family. 



188. PENTHORUM, Cronov. (DITCH STONE-CROP.) 



(762.) P. sedoides, Linn. 



In ditches and boggy spots. Norton and mouth of James River, 

 ISr.B. {Hay.) Fredericton, N.B. {Fowler's Cat.) Common in Ontario 

 and western Quebec, bat less frequent eastward. 



189. SEDUM, Tourn. (STONE-CROP- ORPINE.) 



(*763.) S. acre, Linn. '' Mountain Moss." 



Cultivated as a bordering for flower-beds, but escaped in a number of 

 places to moist, rocky hillsides where it grows in gi'eat profusion, as at 

 Picton Harbor, Bay of Quinte, and at Niagara Falls. {Macoun.) Rocks 

 west of the toll-gate, Pj'escott, and abundant upon rocks a mile west of 

 Brockville, near the river. {Billings.) Vicinity of Ottawa. {Fletcher, 

 Fl. Ott.) Vicinity of London. {Burgess.) Hampton, N.B. -{J. Brit- 

 tain.) Norton, N.B. {Hay.) Bedford and Dutchville, N.S. {Lawson 

 & Sommers.) 



(764.) S. stenopetalum, Pmsh. 



On rocky, mountain slojjes. Frequent on the east side of the Rocky 

 Mountains. {Drummond.) On the Cypress Hills ; in the Bow River 

 Pass ; and frequent on rocky slopes in the Peace River Pass and British 

 Columbia. {Macoun.) Kootanie Pass, Lat. 49° ; Pine River Pass, Lat. 

 55°, and along the wagon road at Lytton, B.C. {Dawson.) 



(765.) S. spathulifolium, Hook. 



Abundant on rocks around Victoi-ia, Vancouver Island. {Macoun & 

 Hill.) On Dean or Salmon River, B.C. ; Queen Charlotte Islands. 

 {Dawson.) 



(766.) S. obtusatum, Gray. (?). 

 A species, which may be the above, has been collected in the Lower 



