(2662.) C. riparia, W. Curtis, Fl. Lond. IV., t. 60, (1792.)

C. lacustris, Willd. (1805); Pursh, Fl. I., 45; Hook., Fl. II., 227. Newfoundland. (Reeks.) In water near Weldford Station, Bass River, Kent Co., N.B. (Fowler, Cat.) Sugar Bush Lake, Montcalm Co., Q. (D'Urban.) Vicinity of Ottawa. (Fletcher, Fl Ott.) Marshes, Bay of Quinte. and in wet meadows and marshes all over central Ontario, and westward to Bed Bay, Lake Huron; marshes on Pelée Point, Lake Erie. (Macoun.) Vicinity of Hamilton, Ont. (Logie.) Common at London, Ont. (Burgess. Millman.) Swamps, Lake of the Woods. (Burgess. Dawson.) Lake Winnipeg, and Cumberland House. (Hooker, Fl.) Moose Factory, James Bay. (Cottar & Dr. Hayden.)

+ + Perigynium hirsute.

(2663.) C. Houghtonii, Torrey, Cyp. 413,(1836); Hook., Fl. II., 223.

A beautiful and distinct species found chiefly in the northern pine forests; on sandy or rocky knolls, where it creeps extensively. On ridges at Truro, N.S. (Macoun & Burgess.) Dry grassy places, Coal Branch, Kent Co.; Tobique River, at Pokiok, N.B. (Fowler, Cat) Dry ridges, Gaspé coast, Q. (Macoun.) Rivière Ste. Marguerite, Q. (Pringle.) On a hill 1,500 feet high, at Tadousac, Q. (A. T. Drummond.) Vicinity of Ottawa; very rare. (Fletcher, Fl. Ott.) On rocky islands, Partridge Lake, and Gull Lake, Addington Co.; abundant in new meadows in Tudor, Madoc, and Marmora, Hastings Co.; Elliott's Falls, Gull River, Victoria Co.; very common in the woods all around Lake Superior, especially about Port Arthur; common at Lake Nipigon, north of Lake Superior. (Macoun.) Michipicotin River, Ont. (B. Bell.) Woods west of Edmonton, lat. 54°, N.W.T. (Macoun.) Methy Portage, lat. 57°. (Richardson.) Hudson Bay to Cumberland House, on the Saskatchewan. (Hooker, Fl.)

(2664.) C. filiformis, Linn. (1753); Hook., Fl. II., 223.

Peat bogs, and wet marshy meadows. Newfoundland. (Reeks.) Lighthouse Point, Yarmouth, N.S. (Macoun.) Elsie, near Richibucto; Arthurette, N.B. (Fowler, Cat.) At Jupiter River, and English Bay, Anticosti; near Point Fame Lighthouse, Gaspé coast, Q. (Macoun.) Ste. Helen's Island, Montreal. (C. F. McCrea.) Marsh near Ottawa. (Fletcher, Fl. Ott.) Marsh west of Prescott Junction, Ont. (Billings.) Beaver meadows and marshes, North Hastings, Ont.; marshes, Bruce Peninsula, Ont.; Lake Hannah, Nipigon River. and along the Kami-nistiqua, near,Fort William; also on Livingstone Point, Lake Nipigon. (Macoun.) Swampy ground, London, Ont. (Burgess. Millman.) Common in the Columbia Valley, at Donald, and westward up Beaver Creek Valley, Selkirk Mountains; Westwood's Swamp, near Nanaimo, and in a marsh at Horne Lake, Vancouver Island. (Macoun.) Norway House to Cumberland House, (Hooker, Fl.)

{2665.) C. lanuginosa, Michx., Fl. I., 175, (1803); Hook., Fl. II., 223.

C. pellita, Muhl. (1805); Pursh, Fl. I., 44.

C. filiformis, var. lanuginosa, Boeck.; Bailey, Carex, Syn. 74, (1S86.) Wet meadows and marshes, never in bogs; extending from the Atlantic to the Pacific. Pictou, N.S. (McKay.) Moncton, andPetit-codiac; Edmunton, N.B. (Fowler, Cat.) Lower Tobique River, N.B. (Brittain.) Salt Lake, and Jupiter River, Anticosti; Grand Vallée, Gaspé coast, Q. (Macoun.) West of St. Sauveur, Quebec city. (St. Cyr.) Vicinity of Ottawa. (Fletcher, Fl. Ott.) Wet meadows, near the junction at Prescott, Ont. (Billings.) Very common in wet meadows throughout central Ontario and westward to Lake Huron at Red Bay, also north-westerly around Lake Nipigon, and south to the Kaminis-tiqua, near Port Arthur. (Macoun.) Meadows at Kingston, Ont. (Millman.) Vicinity of London, Ont. (Burgess.) Lake Mistassini, N.E.T. (J. M. Macoun.) Saskatchewan River to Methy Portage, lat. 57°. (Richardson.) Very abundant in marshy meadows, throughout the prairie region and extending north to Lake Athabasca, in lat. 59°, and south to lat. 49°, and westerly by Morley through the Rocky Mountains to Donald in the Columbia Valley; meadows near Victoria, Vancouver Island. (Macoun.) Cadboro Bay, Vancouver Island. (Fletcher.) Lake Miatassini; Canada to Mackenzie River. (Hooker, Fl.)

Var. aemathorhyncha,

C. aemathorhyncha, Olney, Bot. King's Exp. V., 373, (1871.) C. filiformis, var. aemathorhyncha, W. Boott, Bot. Calif. II., 250, (1880.) C. filiformis, var. latifolia, Bailey, Carex, Syn. 74, (1886.) We have kept C. lanuginosa distinct from C. filiformis, because they differ sufficiently in habit and general character to constitute good species. At present species in America are, in general, too ill-defined, and it is the opinion of the writer that all permanent forms should be described, and specific distinctions placed on record, so that future workers may have less difficulty in working up the plants of any region than has been experienced by me in elaborating the flora of Canada. Specimens referred here were collected at Vancouver city,. on Burrard Inlet, by Prof. Fowler. They agree precisely with Mr. W. Boott's description, and specimens distributed by Suksdorf.

* * * Perigynium long-beaked, inflated and bicuspidate.

+ Perigynium smooth.

‡ Lupulinae, Bailey, Car ex, Syn. 61.

(2666.) C. Subulata, Michx. (1803); Pursh, Fl. I., 40; Hook., Fl

II., 221.

C. Collinsii, Nutt, Gen. N. Am. Pl. II., 205, (1818.) C. Michauxii, Dew. Sill. Journ. X., 273, (1826.)

Deep cedar swamps, in sphagnum. Canada. (Hooker, Fl.) We have no Canadian specimens of this species. Collectors should look for it in Quebec and New Brunswick. The reflexed teeth of the perigynium and grass-like appearance of the whole plant distinguish it from the next, which grows in the same situations.

(2667.) C. Michauxiana, Boeeckeler, Linnaea, XLI, 336, (1877.)

C. rostrata, Michx., Fl. I., 173, (1803.)

C. xanthophysa, vara, nana & minor, Dew. Sill. Journ. XIV., 353, (1828.)

C.folliculata, Hook., Fl. II., 221, (1840.)

Peat bogs, Newfoundland. (La Pylaie.) Cold bog near Louisburg,. Cape Breton. (Macoun & Burgess.) Bog at Rothesay; Lily Lake, and border of Clifton Lake, N.B. (Fowler, Cat.) Lake Mistassini, N.E.T. (Hooker, Fl.)