(2281.) S. quadrangularis, Pursh, Fl. I., 251.

S. rotundifolia, var. quadrangularis. Gray, Man. Ed. V., 519. S. rotundifolia, Linn. Hook., Fl. II., 172; Pursh, Fl. I., 250. S. cauduca, Pursh, II. I., 250.

Thickets in damp woods on Pelee Point, Lake Eric, 1882. (Macoun.) Low woods near Leamington, Essex Co., Ont. (Burgess.)

(2282.) S. hispida, Muhl., Cat. 97.

Low swampy woods not common, eastward. Abundant in black ash swamps in many parts of Hastings Co.; borders of Cold Creek, Brighton, and along the Trent above Campbellford, and in woods west of Newcomb's Mills, Cramahe, Northumberland Co., Ont. (Macoun) Vicinity of Hamilton, Ont. (Logie.) Low woods and thickets at London and Owen Sound, Ont. (Burgess.) Port Dover, Lake Erie. (Macoun.)

(2283.) S. herbacea, Linn. Michx., Fl. I., 238; Pursh, Fl. I., 251.

S. peduncularis, Muhl. Hook., Fl. II., 173; Pursh, Fl. I. 251. S. pulverulenia, Michx., Fl. L, 238. S. lasioneuron, Hook., Fl. II., 173.

Rather common in rich woods and thickets. Rothesay and Frederic-ton; rather common along the St. John River, St. Hilaire, N.B. (Fowler, Cat.) Montreal Mountain, 1821. (Dr. Holmes.) Quebec and Island of Orleans. (Thomas.) Ste. Anne de la Pèrade, Champlain Co., Q. (St. Cyr.) Devil's River, on sand climbing over bushes, Argenteuil Co., Q. (D'Urban.) River banks and on islands at Ottawa. (Fletcher, Fl. Ott.) Thickets around Prescott, Ont., and northward; common. (Billings.) Borders of fields west of Hamilton, Ont. (Logie.) Neighborhood of London, Ont. (Burgess. Millman.) Borders of fences at Castleton and Belleville, Ont.; common; also 15 miles up the Kaministiqua, west of Lake Superior; in thickets along the Assiniboine River, west of Portage la Prairie, Man. (Macoun.) Thickets at Emerson, on the Red River, Man. (Burgess.) Canada to Lake Winnipeg and Red River, and west to Fort Carleton, on the Saskatchewan. (.Hooker, Fl.)