CATALOGUE OF CANADIAN PLANTS. 183 



13. S. cuspidatum, EHRH. 



Abundant in a peat bog, Brule Lake, Algonquin Park, June, 

 1900. (Macoun.) 



Var. submersum, SCHPR. 



Newfoundland, 1893. (Waghorne.) Mer Bleue, near Ottawa, 

 Ont, June, 1892. (Macoun.) 



16. S. teres, AONGSTR. var. squarrosulum, (LESQ.) SCHPR. 



Canon City, Dyea Creek, on a damp mountain side, Alaska, 

 1899. (Williams^) 



if. S. Wulfianum, GIRG. 



Canaan Forks, N.B., Aug., 1894. (/. Moser.) Quite common 

 in the Mer Bleue, near Ottawa, Ont., and in Algonquin Park, On*. 

 (Macoun.) 



18. S. compactum, DC. 



Peat bogs, Labrador, Aug., 1897. (A. P. Low.) Bogs, Depar- 

 ture Bay, Nanaimo, Vancouver Island, June, 1887. (Macoun.) 



20. S. Pylaiei, BRID. 



Abundant in a bog near Aspey Bay, Cape Breton Island, N.S., 

 Aug. 6th, 1898. (Macoun.) 



23. S. imbricatum, HORNSCH. ) Russ. 



Very abundant in bogs near Aspey Bay, and around Louisburg, 

 Cape Breton Island, N.S.; Aug., 1898 ; in damp woods, near the 

 roundhouse, Niagara Falls, Ont., May I4th, 1901. (Macozm.) 



954. S. Obtusum, WARNST. 



This species seems to be very rare. Only a few stems were col- 

 lected floating on the marshy border of a lake near Lake 

 Opeongo, Algonquin Park, Ont., Aug. 20th, 190 '). (Macoun.) Named 

 by Dr. Warnstorf. 



955. S. molle, SULLIV. 



This is a common species around boggy depressions and ponds 

 on Sable Island, N.S., July 1899. (Macoun.) 



