Abundant in bogs eastward from Lake Superior. Sphagnum swamp, Truro, N.S. (Macoun.) Swamps and woods, Bass River; Carloton Co., N.B. (Fowler, Cat.) Tobique Lakes, N.B. (Brittain.) Swamps, Cape Rosier, and Grand Vallee, Gaspé coast; Mount Albert, Shichshock Mountains, Q. (Macoun.) Ouatchechou, and west point of Mingan River, Q. (St. Cyr.) Swamps, vicinity of Ottawa. (Fletcher, Fl. Ott.) Common in swamps at Prescott, Ont. (Billings.) Kemptville, Ont. (Porter.) Cedar swamps throughout central Ontario, and westward to the country around Lake Superior and Lake Nipigon. (Macoun.) Vicinity of Hamilton, Ont. (Logie.) Swamps at London, Ont. (Burgess. Millman.) Cumberland House and Rocky Mountains. (Hooker, Fl.)

(2554.) C.lremota, Linn. Sp. Pl., Ed. II., 1383, (1757.)

Resembles tall and lax forms of 0. canescens, but differs in the much scattered spikes. Newfoundland, according to Gay, and Sitka, according Flora Rossica. (Bailey, Carex, Syn. 145.) Sitka. (Rothr. Alask.)

(2555.) C. tenuiflora, Wahl. (1803); Hook., Fl. II., 214.

Swamps and peaty meadows, not common. Tobique River; Petit-codiac, N.B. (Fowler, Cat.) Mer Bleue, near Ottawa. (Fletcher, Fl. Ott.) Swamp, five miles west of Belleville, and in a cedar swamp beyond the Jordan, Hastings Road, Ont.; Flat Rock Portage, Lake Nipigon; and in peat bogs at Red Rock, Port Arthur, and Fort William, west of Lake Superior, and at Otter Head, on the east coast; in wet woods,

Swan Lake House, Man. (Macoun.) Borders of a peat bog near London, Ont. (Burgess. Millman.) Canada to Norway House, Lake Winnipeg. (Hooker, Fl.)

(2556.) C. canescens, Linn. Sp. IT., 974, (1757.)

C.curta, Good. (1792); Hook., Fl. II., 214; Pursh, Fl. I., 37; Michx., Fl. I., (1803.)

C. vitilis, var. pallida, Olney, Bot King's Exp. V., 364, (1871.) Very common under various forms in bogs and swamps from the Atlantic to the Pacific. Brigus, Newfoundland. (R. Bell) Coast of Labrador. (McGill Coll. Herb.) Common in bogs at Truro, Windsor, and Halifax, KS. (Macoun. & Burgess.) Magdalen Islands. (J. Richardson.) Common at Bass River; Lily Lake, KB. (Fowler, Cat.) Chipman, N.B. (Wetmore.) Ouatchechou, Q. (St. Cyr.) Tadousac, Q. (A. T.Drummond.) Swamps, vicinity of Ottawa. (Fletcher, Fl. Ott.) Common in swamps at Prescott, Ont. (Billings.) Marshy spots in meadows, along margins of ponds, and in peat bogs, throughout central and northern Ontario to Lake Nipigon, and west of Lake Superior. (Macoun.) Swamps, London, Ont. (Burgess.) Wet places, Emerson, Man. (Millman.) Lake Mistassini, N.E.T. (J. M. Macoun.) North end of Lake Winnipeg. (R. Bell.) Apparently rare in the Rocky Mountains, only observed at Kicking Horse Lake, and at Six Mile Creek, in the Selkirk Mountains; bogs northward up the Fraser River, B.C. (Macoun.) Ilgacho Brook, B. C. (Dawson.) On the borders of ponds and lakes throughout Vancouver Island, though far from common. (Macoun.) Arctic sea-coast and Methy Portage. (Richardson.) Common in British America. (Hooker, Fl.) Sitka. (Rothr. Alask.) Greenland. (Lange.)

A curious form, with the spikes gathered in a glomerate almost triangular head, was collected at Langford Lake, Vancouver Island, in Juno, 1887.

Var. vulgaris, Bailey, ined. (1888.)

C. canescens, var. alpicola, American authors, in part.

Differs from the species in its more slender culm, and laxer habit, its small spikes and usually smaller and spreading perigynia. The commonest form of C. canescens. Abundant in swamps and wet meadows. Common through the Northern States, east of the Mississippi and adjacent Canada. (Bailey.) Common at Bass River, Carleton Co., and rather common at Salmon River, KB. (Fowler, Cat.) Bogs at Salt Lake and Ellis Bay, Anticosti. (Macoun.) St. Charles Island, Mingan, and Ouatchechou, Q. (St. Cyr.) Bogs, vicinity of Ottawa. (Fletcher. Fl. Ott.) Cedar swamps, Dummer, Peterboro Co.; north-east coast of~

Lake Superior, and in swamps at Port Arthur, Thunder Bay; Nipigon River, Lake Superior. (Macoun) Lake Mistassini, N.E.T. (J. M. Macoun.) Mossy bog, London, Ont. (Burgess. Millman.) Abundant in marshes at Swan Lake House, and around the Porcupine Mountain, Man.; Beaver Creek, in the Selkirk Mountains, B.C.; swamps near McLeod's Lake, northern British Columbia. (Macoun.) Vancouver city, Burrard Inlet, B.C. (Prof. Fowler.) It is probable that some of the above references belong to the next variety, as we have not seen the specimens.

Var. alpicola, Wahl.

C. sphaerostycha, Dew. Sill. Journ. XLIX., 44, (1845.)

C. canescens, var. vitilis, Macoun Cat. No. 1968, in part, (1878.)

Smaller than the species (seldom over a foot high), the culm stiff in most alpine forms, more or less slender in the subalpine forms; spikes small and globular, or nearly so, well defined brown or tawny. Alpine or subalpine, across the continent. (Bailey.) Marshes at Truro, and Halifax, N.S. (Burgess & Macoun.) Along the Gaspé coast, and up the Ste. Anne des Monts River, and on Mount Albert, Shickshock Mountains, Q.; Partridge Lake, North Hastings, and in a swamp near Bcllville, Ont. (Macoun.)

(2557.) C. arcta, Boott, Ill., 155, t. 497.

C. canescens, var. polystachya, Boott.; Rich. Journ. II., 344. C. Kunzei, Olney, Proced. Am. Acad., 407, (1872.)

Swamps and ditches; extending from New Brunswick westward to Vancouver Island. Petitcodiac, Hampton, Portage, and Moss Glen, King's Co., N.B. (Brittain.) Gatineau Point, near Hull, Q. (Fletcher, Fl. Ott.) Wet shore of Lake Champlain, Q. (Pringle.) Abundant on Long Portage, Nipigon River; also on a Portage near Rainy Lake, Dawson route; very abundant in ditches and wet meadows at Victoria, and Nanaimo, Vancouver Island. (Macoun ) Cedar Hill, near Victoria, Vancouver Island. (Fletcher.) Burrard Inlet, at Vancouver city, B.C. (Prof. Fowler.) Rainy Lake and Lake of the Woods. (Richardson.)

(2558.) C. Deweyana, Schweinitz, An. Tab. (1823); Hook., Fl. II., 213.

C. remota, Rich. App. Frankl. Exp. (1823); Pursh, Fl. I., 37. In dry grassy thickets, abundant from the Atlantic westward. Point Pleasant, near Halifax; and Windsor, N.S. (Macoun.) Bass River; Petitcodiac; Gaspereau River, and Salmon River; Aroostook Falls, N.B. (Fowler, Cat.) Tobique River, N.B. (Hay.) Thickets along the Jupiter River, Anticosti; River Ste. Anne des Monts, Gaspé