CATALOGUE OF CANADIAN PLANTS. 89 



Baddeck, Cape Breton. (Macoun.) Harris Cove, Norton, and Clifton, 

 N.B. (Fowler, Cat.} Along the Eiver St. Lawrence, Q. (St. Cyr.} Com- 

 mon in the vicinity of Ottawa. The typical form. (Fletcher, Fl. Ott.} 

 St. Lawrence River, Conway's Creek, Nation River, and near Prescott, 

 Ont. (Killings.') Jones Falls, Rideau River, Ont. (Millman.} Very com- 

 mon in all the streams in central Ontario, and extending westerly to 

 Victoria Co. (Macoun.} Marsh at Hamilton, Ont. (Logie.} London, 

 Ont. (Burgess.} South Twin Island, James Bay, and Severn River, 

 Keewatin. (J. M. Macoun} James Bay, near Moose Factory. (Cottar 

 & Dr. Hayden.} Moose Mountain Creek, Man. (J. M. Macoun.) Abun- 

 dant in the Sydenham River, at Owen Sound, and in all the streams 

 entering Lake Superior ; Reed Lake, Assiniboia, and in Red Deer 

 River, Man. ; not uncommon in pools and slow flowing streams from 

 Morley westward through the Rocky Mountains to the Columbia ; in 

 Somas and Stamp rivers, Alberni, west coast of Vancouver Island. 

 (Macoun.} Crow Nest Pass, Rocky Mountains ; Lewes River, lat. 62 

 N. of British Columbia. (Dawson.) Canada to English River, and from 

 Hudson Bay to alpine lakes in the Rocky Mountains. (Hooker, Fl.) 

 Greenland. (Lange.} 



Two very marked forms were found growing together at Black 

 Rapids, Rideau River, near Ottawa, by Mr. Fletcher. Of these forms 

 Mr. Morong writes him : 



(I.) " There is no varietal name for this form, but it is bushy and 

 densely clothed with fine setaceous leaves, and might be called var. 

 tenuissimus, as you suggest. 



(II.) This form approaches the "var. (?) latifolius" of Robbins, 

 some of the leaves three nerved." 



(2450.) P. Robbinsii, Oakcs, Hov. Mag. VII., 128. 



Growing usually in deep water and seldom maturing its fruit. Petit- 

 codiac and Hampton ; also Tobique Lakes, N.B. (Fowler, Cat.} Little 

 Nictau Lake, N.B. (Hay.} Meech's Lake, Chelsea. Q. (Fletcher, 

 Fl. Ott.} Partridge Lake, Addington Co. ; Crow River, Marmora Iron 

 Works ; Oak Hill Pond, near Stirling, Hastings Co.; Gull River, near 

 Elliott's Falls, and Gull Lake, near Minden, Victoria Co. ; and in the 

 mouth of Nipigon River, Lake Superior. (Macoun.} Oba Lake and 

 Missinaibi River, Ont. (R. Bell.) Lost Lake, near Cedar Hill, and 

 abundant and fruiting in the Somas River at Alberni, on the west 

 coast of Vancouver Island. (Macoun.} 



