CATALOGUE OF CANADIAN PLANTS. 305 



854. H. fluitans, LINN. 



In bogs, Sable Island, N.S., 1899 ; in bogs, Johnston's Lake, near 

 North Wakefield, Que., 1898 ; abundant, Algonquin Park, Ont., 

 1900. (Macoun) In swamps near Marsh Lake, Yukon. (Williams.) 

 Chilliwack Valley, B.C., 1901. (/. M. Macoun.) 



855. H. exannulatum, GUEMBEL. 



Boggy spots and ponds, Sable Island, N.S., Aug., 1899. 

 (Macoun.) Bogs, Fort Chimo, Ungava Bay, Labrador, Septem- 

 ber, 1896. (A. P. Low.) Bogs on Barren Grounds, Lat. 62 56', 

 Long. 102 45' W., Aug., 1893. (/. B. Tyrrell.) 



Subsp. pseudo-lycopodioides, KINDB., Ott. Nat. Vol. 

 XIV. p. 82. 



Agrees with H. exannulatum in the leaves being long-decurrent 

 and with large hyaline alar cells ; but the leaves are shortish and 

 entire with generally an obtusate acumen ; costa thicker. Cap- 

 sules not seen. Resembles in habit Calliergon ochraceum but the 

 stem-leaves are plicate as in Hypnum lycopodioides. 



On stones in woods at Margaree, Cape Breton Island, N.S., 

 July, 1898. (Macoun.) 



Subsp. pseudo-stramineum, KINDB., Bryol. N. Am. & 

 Eur. 132. 



Leaves green, entire, often straight ; those of the branches 

 often with oblong apical cells. Capsules not seen. 



Newfoundland. (Waghorne.) In pools near Victoria, and on 

 earth in a wet field on Sea's farm, near Esquimalt, Vancouver 

 Island, May, 1893. (Macoun) 



S56. H. uncinatum, HEDW. 



Canon City and Dyea Creek, Alaska ; Lake Lindeman, Lake 

 Lebarge and Dawson, Yukon. (Williams.) Chilliwack Valley, 

 B.C. (/. M. Macoun) 



Var. micropterum, KINDB. 



St. Paul Island and St. George Island; Behring Sea, July, 1892. 

 (/. M. Macoun.) 



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