CATALOGUE OF CANADIAN PLANTS. 1 83 



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. squarrosulmn, (Lesq.) Schpr. 



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

 1899. {Williams.) 



iV. S. Wulfianum, Giro. 



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

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

 {Maco7in.) 



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 14th, 1901. {Macoim.) 



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, 1903. {Macoun.) Named 

 by Dr. Warnstorf. 



965. S. moUe, SuLLiv. 



This is a common species around boggy depressions and ponds 

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



