CATALOGUE OF CANADIAN PLANTS. 1G7 



Eiver near Prescott. (BiUinys.) Common in western Ontario. (Bur- 

 gess & Buclian.) North to Bear Lake. (Richardson.) North-east from 

 Mackenzie Eiver. (Hook. Arct. PL) 



(171.) M. verticillatum, Linn. 



In marshes south side of the Bay of Quinte at Belleville, still water 

 and in the "drowned " lands along the Trent, between Hastings and 

 Heely's Falls, Ont. ; marslies around the base of the Porcupine Moun- 

 tains, Man., Lat. 5'^°. (Macoun.) Marshes, Burlington Bay, Hamilton, 

 Ont. (Logic.) 



(778.) M. heterophyllum, Michx. 



Lakes and rivers, apparentl}^ i-are. River Trent, near Heely's Falls, 

 Northumberland Co., Ont. North River above Eound Lake, Peterboro 

 Co., Ont. At the mouth of the Sydenham River, Owen Sound, abun- 

 dant ; also in a marsh on the lake shore at Port Stanley, Ont. (Ma- 

 coun.) Niagara Falls. (Maclagan.) Vicinity of Hamilton, Ont. 

 (Logic.) Parry Sound, Georgian Bay. (Burgess.) 



(779.) M. tenellum, Bigel. 



In watery places, Newfoundland. (De Candolle.) Rare at Richi- 

 bucto, N.B. (Fowler's Cat.) Saguenay River, Q. (A. T. Drummond.) 

 Abundant at the mouth of Buck's River, Stanhope, Victoria Co., Ont. 

 (Macoun.) Lake Joseph, Muskoka, Ont. (Burgess.) 



193. PROSERPINACA, Linn. (MERMAID WEED.) 



(780.) P. palustris, Linn. 



Wet swamps, rather rare. Vicinity of Montreal. (Maclagan.) 

 Banks of the Nation Rivei-, eastern Ontario. (Billings.) Marshes along 

 Lakes Isaac and Sk}^, Bruce Peninsula, also Fishing Islands, Lake 

 Huron. (Macoun.) 



194. HIPPURIS, Linn. (MARE'S TAIL.) 



(781.) H. vulgaris, Linn. 



Pools of water and margins of lakes from Newfoundland, Labrador 

 and Nova Scotia to the Pacific and north to Alaska and the Arctic Sea. 

 This species is widely distributed, and may on the coasts, both east and 

 west, pass into the next. 



(782.) H. maritima, Hellenius. 



Mouth of Haye's River, near York Factory, Lat. 57°. (Eichardson.) 



