282 METASPERMAE OF THE MINNESOTA VALLEY. 



Wats, and Coult., Gray's Man. 6 ed. 153; Britt., Fl. N. J. 92; Webb., 

 Fl. Neb. 129; Chap., Fl. S. St. 120; Upham, Fl.Minn. 48; Brew, and Wats., 

 Fl. Calif. 1, 171; Herd., Fl. Eur. Russ. 46; Coult, Fl. Colo. 78; Mac., Fl. 

 Can. I, 127; Wats., Bibl. Ind. I, 289; Wats., KingExp. 80; Roth., Wheel. 

 Exp. 110; Cov., Fl. Ark. 179; Engl. Focke, Nat. Pflanz. 3, III, 14. 



North America: Q., Ont. to Man. and Saskatchewan; 

 W. to Vancouver in var. ; N. England to Fla. ; W. to Minn., 

 Kan., Colo., Neb,, Ark., Calif, to Brit. Col. 



Minn, valley: Forest district, especially N. E. ; prob- 

 ably also far N. W. ; rocky banks and edges of sloughs. 



HERB. : Kassube 64, Minneapolis; Sandberg 155, Good- 

 hue Co.; Oestlund 39, Minneapolis; Herrick 86, Minneapolis; 

 Sandberg 156, Cannon Falls. 



SPIRAEA LINN. Gen. 409 (1737). 



Petrophytum NUTT. ex B. and W. Fl. Calif. I, 170 (1880). 

 Baillon, Hist. PI. I, 469; Benth. and Hook., Gen. PL I, 611; Durand, 

 Ind. Gen. Pfian. 112; Engler and Prantl, Nat. Pflanz. 3, III, 14; Schenck, 

 Palaeophyt. 674. 



Living species : 40 ; temperate Northern hemisphere 

 and a few in mts. under the tropics. Russia, 16; Europe, 11; 

 North America, 4-5; Mexico, 1; E. Sts., 3; Rocky mts., 3; W. 

 coast region, 3; Oregon and Canada, 3. 



Fossil species: Several described. Oeningen, Tertiary 1 

 sp. (Heer)-, Alaska, 2-3 (Heer); Leoben (Ettinghausen). 



Spiraea tomentosa LINN. Spec. 489 (1753). 



S. femiginea, glomerata, rosea RAF. N. Fl. Ill, 62, 63 (1836). 

 Wats, and Coult., Gray's Man. 6 ed. 153; Britt., Fl. N. J. 93; Upham, 

 Fl. Minn. 48; Chap., Fl. S. St. 120; Mac., Fl. Can. I, 126; Cov., Fl. Ark. 179; 

 Engl. Focke, Nat. Pflanz. 3, III, 15; Wats., Bibl. Ind. I, 322. 



North America: N. S., N. Br., Q., Ont. to N. Eng., N. 

 J. and Ga.; W. to Minn., Kan. and Ark. 



Minn, valley: Ft. Snelling and far N. E. in Dakota 

 Co. ; edges of sloughs and forest marshes. 

 HERB. : Sandberg 159, Chisago Co. 



Spiraea salicifolia LINN. Spec. 489 (1753). 



8. tomentosa var. atba MARSH. Arbust. Amer. 147 (1785). 



S. carpinifolia WILLD. Enum. 540 (1809). 



8. amoena, ciliata, obovata RAF. N. Fl. Ill, 64-66 (1836). 

 Wats, and Coult.. Gray's Man. 6 ed. 153; Britt., Fl. N. J. 93; Wats., 

 Bibl. Ind. I, 322; Upham, Fl. Minn. 48; Chap., Fl. S. St. 121; Trautv., 

 Fl. Sib. 48; Hook., Fl. Gt. Brit. 116; Mac., Fl. Can. I, 126; Forbes and 

 Hems., Fl. Sin. 227; Led., Fl. Ross. II, 15; Nym.,Fl. Eur.; Herd.,Fl. Eur. 

 Russ. 46; Engl. Focke, Nat. Pflanz. 3, III, 15; Hart., Fl. Scand. I, 292; 

 Rothr., Alask. 445. 



