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

 Can. I, 127; Wats., Bibl. Ind. I, 289; Wats., King Exp. 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 55, Minneapolis; Her rick 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. 1.469; Benth. and Hook., Gen. PL I, 611; Durand, 

 Ind. Gen. Plian. 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, ]; 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 {Etiinghausen). 



Spiraea tonientosa Linn. Spec. 489 (1753). 



S. feiTiiginea, glomerata, roxa 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). 



IS. lomtntosa var. alba Marsh. Arbust. Amer. 147 (1785). 



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



/S. amocna, ciliata, ohovald Rak. N. Fl. Ill, 64-66 (1836). 

 Wats, and Coult.. Gray's Man. 6 ed. 153; Britt., Fl. N. .1. 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. 



