l. SPHAGNUM, Dill.

2. S. Girgensohnii, Russ.

Sukkertoppen, Greenland, Aug. 6th, 1886. (Jensen) Swamps at Edmonton, Murray mine, Sudbury, and Sunbridge, Ont. (Jas. White.) Abundant in Algonquin Park, Ont., 1890. (Macoun) Queen Charlotte Islands, B.C. (Law.) Chilliwack River, B.C., July, 1901. (J. M. Macoun.) Swamps, head of Lake Lindeman, Yukon, 1898. (Williams)

Var. gracilescens, Warnst, forma squarrosa, Warnst.

Peat bog, Cache Lake, Algonquin Park, Ont., June 6th, 1900. (Macoun.)

Var. stachyodes, Warnst.

Peat bog, Catfish Lake, Algonquin Fark, Ont., July 23rd, 1900. (Macoun) Port Etches, Alaska, June, 1892. (J. M. Macoun)

Var. hygrofhilum, Warnst.

Wet woods, Casselman, Ont. (Macoun) Swamps, Edmonton and Sudbury, Ont., 1893. (Jas. White)

3. S. Russowii, Warnst. var. poecilum, Warnst.

Peat bog, Cache Lake, Algonquin Park, Ont., June, 1900. (Macoun)

Var. rhodochroum, Russ. Battle Harbour, Labrador, 1893. (Waghorne)

Var. Girgensohnioides, Russ.

In a peat bog, Chalk River, Ont., Oct., 1892. (Macoun)

4. S. fuscum, Schpr. var. fuscescens, Warnst.

In a peat bog, Catfish Lake, Algonquin Park, Ont., July, 1900; peat bog, Prince Albert, Sask., June, 1896. (Macoun.) In swamps about Dawson, Yukon, 1899. (Williams)

Var. pallescens, Warnst.

Bogs, Jumping Pound Creek, Alta., 1897. (Macoun) In a bog, Lat. 61°, Long. 1040, W. July 24th, 1893. (J. W. Tyrrell)

Var. viride, Warnst.

In peat bogs, Chalk River and Algonquin Park, Ont., July, 1900. (Macoun)

5. S. tenellum, Schpr. var. rubrum, Warnst.

In bogs, Greenland. (Ryder) In bogs, Belledune, New Brunswick, 1875. (Chalmers) In bogs, Port Arthur, Ont., 1889. (Thos. Walker,) Fort Good Hofe, Mackenzie River, July 18th, 1892. (Miss E. Taylor.) Bogs, Lat. 61°, Long. 104o, W., July 24th, 1893. (J. W. Tyrrell)

6. S. Warnstorfii, Russ.

In a peat bog, Algonquin Park, Ont., July, 1900. (Macoun) Port Etches, Alaska, Aug., 1892. (J. M. Macoun) Swamps at the head of Lake Lindeman Yukon, 1898. (Williams)

Var. versicolor, C. Jensen. In bogs, Greenland. (Rosenvinge)

Var. purpurascens, Russ.

North Arm, Newfoundland, 1899. (Waghome) In a swamp at the head of Lake Lindeman, Yukon, 1898. (Williams)

Var. viride, Warnst.

In a cedar swamp at Southampton, Bruce Co., Ont., August, 1901. (Macoun.)

10. S. Lindbergii, Schpr. var. microphyllum, Warnst. St. Paul Island, Behring Sea. (J. M. Macoun.)

11. S. riparium, Aongstr.

L'Asne au Loup, Labrador, 1894. (Waghorne)

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)

17. S. Wulfianum, Girg.

Canaan Forks, N.B., Aug., 1894. (J. 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, Departure 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. i 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. (Macoun)

954. S. obtusum, Warnst.

This species seems to be very rare. Only a few stems were collected floating on the marshy border of a lake near Lake ofeongo, Algonquin Park, Ont., Aug. 20th, 1900. (Macotin) 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.)

956. S. centrale, Arn. & Jens.

Notre Dame Bay, Newfoundland, 1893. (Waghorne.)

957. S. Duseni, Warnst.

White Cove, Seal Bay, Newfoundland, 1891. (Waghorne.)