(2748.) M. diffusa, Schreb.; Pursh, Fl. I., 40.

Dilepycum minutiflorum, Michx., Fl. I.,40. In grassy woodlands along Lake Erie, above the Canal at Port Col-borne. (Macoun.) Point Pelée, Essex Co., Ont. (Burgess.) Vicinity of Hamilton, Ont. (Buchan.)

(2749.) M. glomerata, Trin.; Hook., Fl. II., 237.

Polypogon glomeratus, Willd. Enum. I., 87.

P. setosus, Spreng. Mant. I., 31.

P. racemosus, Nutt. Gen. I., 51.

Agrostis racemosa, Michx., Fl. I., 53; Pursh, Fl. I., 65.

A. setosa, Muhl. Gram. 68.

Cinna racemosa, Kunth. Enum. I., 207.

Not uncommon in swamps, and along brooks and rivers. Weldford, Kent Co.; Kennebeccasis, N.B. (Fowler, Cat.) Petiticodiac, N.B. (Brittain.) Becscie River, and Jupiter River, Anticosti; Madeline River, Gaspé, Q. (Macoun.) Vicinity of Chelsea, Q. (Billings.) Near Ottawa. (Fletcher, Fl. Ott.) Marsh near Prescott Junction, Ont. (Billings.) Beaver meadows, North Hastings, Ont.; Big Swamp, Murray, Northumberland Co., Ont. (Macoun.) Low grounds, London, Ont. (Burgess. Millman.) Vicinity of Hamilton, Ont. (Logie.) Point between Shib-wah and Batch-ah-wa-nah rivers, Georgian Bay; Michipicotin River, and Oba Lake, Ont. (R. Bell.) Wet bank, twenty-five miles up the Kaministiqua River; also frequent on the margins of lakes and swamps throughout the prairie region, and north-west to Peace river; rather rare in the Rocky Mountains, from Morley to Donald in the Columbia Valley, B.C. (Macoun.) South Kootanie Pass, Rocky Mountains. (Dawson.) Plains of the Saskatchewan to the Rocky Mountains. (Hooker, Fl.)

(2750.) M. Mexicana, Trin. Diss. I., 189.

Agrostis Mexicana, Linn.; Muhl. Gram. 67; Pursh, Fl. I., 64. A. lateriflora, Michx., Fl. I., 53; Pursh, Fl. I., 64. Cinna Mexicana, Link. Enum. L, 71.

Moist meadows and borders of moist thickets. Fredericton; Petit-codiac, N.B. (Fowler, Cat.) Simonds, Carleton Co., N.B. (Brittain.)

On sandy banks of the Rivière Rouge, Argenteuil Co., Q. (D' Urban.) Along the rocks, Major Hill Park, Ottawa. (Fletcher, Fl. Ott.) Woods near Prescott Junction, and close to Ottawa. (Billings.) Low rich land along Cold Creek, at Wooler, Ont.; frequent in meadows and thickets, Hastings Co.; and at Owen Sound, Ont. (Macoun.) Point Edward, St. Clair River, Ont. (J. M. Macoun.) Near Kingston, Ont. (Burgess.) Swampy meadows, near London, Ont. (Burgess. Millman.) Vicinity of Hamilton, Ont. (Logie.) Manitoulin Island, Georgian Bay. (Burgess.) Along Current River, near Port Arthur, Lake Superior. (Macoun.)

(2751.) M. sylvatica, Torr. & Gray, Gram. & Cyp. L, No. 13.

Agrostis sylvatica, Torr., Fl. I., 87. A. diffusa, Muhl. Gram. 64.

Rocky beds of streams and by waterfalls. Low rocky places, Frederic-ton; Belleisle, King's Co., N.B. (Fowler, Cat.) Dideguash River, N.B. (Hay.) Abundant along the Moira and Trent rivers, in Hastings and Northumberland Co's., Ont. (Macoun.) Rocky banks, Moon River, Muskoka Co., Ont. (Burgess.) North shore of Lake Superior. (Agassiz.)

(2752) M. Willdenovii, Trim Diss. I., 188.

Agrostis tenuiflora, Willd.; Pursh, Fl. I., 63. Cinna tenuiflora, Link. Enum. I., 71.

Rocky woods, apparently rare. Rocky banks and woods along the Moira, half a mile above the railway bridge, at Belleville, Ont. (Macoun.) Rocky wooded bank of river, Niagara Falls. (Burgess.) This species is distinguished from M. Mexicana by its long-awned palets, and from M. sylvatica by its contracted and very slender panicle and short-pointed glumes.