3l6 GEOLOGICAL SURVEY OF CANADA. 



Subgenus X. CALLIERGON, Lesq. & James. 



«18. H. cordifolium, Hedw. 



Boggy places, St. Paul and St. George islands, Behring Sea, 

 1897. (/• ^^' Macoun.) In bogs in wet woods, Baddeck, Cape 

 Breton Island, N.S., July, 1898. {Macoun.) Klondike River bot- 

 tom near the mouth. ( Williams.) 



^19. H- giganteum, ScHiMP. 



In a swamp at Golden Lake, Ont., 1900; water holes. Crow's 

 Nest Lake, Rocky Mountains, Alta , 1897. {Macoim.) The var. 

 fluitam was found in a small stream flowing into Lake Marsh, 

 Yukon . ( Williams. ) 



Var. Labradorense, Ren. & Card. Bot. Gaz. Vol. XIX..p. 

 240. 



A notable variety, distinct from the type by the leaves larger 

 and longer and the costa attenuate, vanishing rather far from the 

 apex and often forking. 



Battle Harbour, Labrador, 1892. {Waghorne.') 



^20. H. Richardsoni, (Mitt,) Lesq. & James. 



Fort Chimo, Ungava Bay, Labrador, Aug., 1896. {A. P. Low.) 

 In a bog, Johnston's Lake, North Wakefield, Que., June, 1898. 

 {Macoun.) At Dawson in swamps ; in fine fruit, July 27th. {Wil- 

 Hams.) 



«2i. H. sarmentosum, Wahl. 



In a small pond by snow banks about lOOO feet above Lake 

 Lindeman, Yukon {Williams.') 



Var. fontinaloides, Berggren. 



On rocks in the bottom of a small stream near the mouth of 

 Bonanza Creek, Yukon. This is a variety with long slender stems 

 and larger leaves often all green or partly green and parti}' pur- 

 ple. {Williams.) 



