406 METASPERMAE OF THE MINNESOTA VALLEY. 



Living species: 3; 2, N. America; 1, circumboreal. 

 Fossil species: Tertiary, Sagor, Radoboj {Unger)\ 

 Miocene, Thtiringen {von Frifsch). 



Ledum latifoliiim Ait. Lam. 111. 363 (1791). 

 L. groenlandicum Retz. Scand. (1799). 

 L. palustre \a.v. latifolium MiCHX. Fl. N. Am. I (1803). 

 Wats, and Coult., Gray's Man. 6 ed. 321; Mac, Fl. Can. I, 301; Up- 

 ham, Fl. Minn. 94: Engl. Drude, Nat. Pflanz. IV, 1, 34: Gray, Syn. Fl. II, 

 1,43. 



North America: Greenland, Labrador, Newf., N. Br. 

 to Pac. ; S. to Minn., Mich., N. N. Eng. and Penn. 



Minn, valley: Far N. district and possibly N. W. ; 

 woods and barrens. 



Herb. : Roberts 80, Duluth; Bailey 257, Vermilion lake; 

 Sandherg 381, Chisago Co. ; MacM. and Sheld. 31, Brainerd. 



ANDROMEDA Linn. Gen. 344 (1737) em. Benth. 1. c. (1876). 

 Benth. and Hook., Gen. PL II, 587; Durand, Incl. Gen. Phan. 243; Eng- 

 ler and Prantl, Nat. Pflanz. 4, I, 42 (Drude); Schenck, Palaeophyt. 722; 

 Baillon, Hist. PI. XI, 131, in part. 



Living species: 1; circumboreal and to temperate 

 regions. 



Fossil species: Numerous in Cretaceous of N. Amer- 

 ica; 10-20 {Lesquereaux, Heer, Ward, Newberry); Tertiary, 

 Europe (Saporta, Ettinghausen, Heer, linger); Switzerland, 

 Spitzbergen, Alaska, Greenland; Tertiary N. America, Alaska, 

 Florissant, etc.; 40-50 spec, described; to be much reduced. 



Andromeda polifolia Linn. Spec. 393 (1753). 



A. rosmarinifolia Pursh, Fl. Am, 291 (1814). 

 A. glaucophylla Link, Enum. I, 394 (1821). 

 Wats, and Coult., Gray's Man. 6 ed. 316; Britt., Fl. N. J. 161; Mac, 

 Fl. Can. I, 297; Upham, Fl. Minn. 94; Trautv.. Fl. Sib. 80; Nym., Fl. Eur.; 

 Hook., Fl. Gt. Brit. 252; Herd., Fl. Eur. Buss. 82; Engl. Drude, Nat. 

 Pflanz. IV, 1, 44; Gray, Syn. Fl. II, 1, 31; Hart., Scand. Fl. I, 319. 

 Europe to Tyrol and Hungary; N. Asia. 

 North America: Labrador and Greenland to Pac. and 

 Arctic ocean; S. to Minn., Penn. and N. J. 



Minn, valley: N. E. district; rare; deep, rich woods 

 or barrens. 



Herb.: Bailey 280, St. Louis River; Bailey 295, St. 

 Louis river; Sandberg 380, Chisago Co. 



LYONIA NuTT. Gen. I, 266 (1818). 



CaHsaiKlra and Pieris Don, Edin. Phil. Journ. XVIT, 158-159 

 (1834). 



