60 GEOLOGICAL SURVEY OP CANADA. 



XII. OISTACEiE. EocK-RosE Pamilt. 



71. HELIANTHEMUM, Tourn. (ROCK-ROSE.) 



(219.) H. Canadense, Michx. Fl. I., 308. Frost-weed. 



H. rarmdiflorum, jMiclix. Fl. I., 307. 

 H. rosmarinifolium, Pursh, 3(i4. 

 H. corymbogum, Pursh 363. 



Dry, sandy, or gravelly soil, east of Belleville; very common on 

 Eice Lake plains ; St. James' Cemetery, Toronto ; vicinity of London. 

 Ont. ; Pointe-aux-Pins, Lake Superior; Fort Francis, Eainy Eiver. 

 (Macoun.) Gait, Ont. (M'ss Crooks.) Sandwich, Ont. (Maclagan.) 

 Sandy plains of the Eiviere aux Sables, Lambton Co., Ont. (Cribson.) 

 Plains of the Saskatchewan. (Bourgeau.) Last reference doubtful. 



72. HUDSONIA, Linn. (HUDSONIA.) 



(220.) H. tomentosa, Nutt. Downy Hudsoniana. 



H. cricoliles, Eichards. in Frankl. Journ.. 11. , 



Sandy shoi'es of lakes and rivers. Northwest Arm near Halifax, N.S. 

 (Sommers.) Abundant on Kouchibouguac beach, N.B. (Fowler's Cat.) 

 Anticosti and St. Laurent, Q. (Brunei.) Port Colborne, Lake Brie. 

 {McGill Coll. Herb.) Pointe-aux-Pins, Montreal and Sandj^ Islands, 

 Lake Superior; Fifteen-Mile Point, Eainy Lake, and Hungry Hall, 

 entrance to the Lake of the Woods ; sand hills west of Fort Pitt, 

 X. "W. T. (Macoun.) From Lake Huron to as far north as Slave Lake, 

 in several places. (Sichardson.) 



(221.) H. ericoides, Linn. 



MclSTab's Island, Halifax, IST.S. (Sommers.) 



73. LECHEA, Linn. (PINWEED.) 



(222.) L. major, Michx. Greater Pinweed. 



L. villosa, Ell. Hook, Fl. I., 72. 



Dry woods in sterile soil. Sandy woods a mile south of Port Dover 

 Junction, Canada Southern Eailway, Ont. (Macoun.) ISTear London, 

 Ont. (Burgess.) 



