LIST OF HIGHER SEED-PRODUCING PLANTS. 231 



Holzinger 9, Winona Co.; Hammond 2, Lake City; Herb. Sheld. 

 1828, Ramsey Co.; Herb. Moijer 19, Montevideo. 



ISOPYRITM Linn. Gen. eel. II, 533 (1742). 

 Copti-s Salisb. Linn. Trans. VIII,. 305 (1807 1. 

 Chrysa Raf. Desf. Journ. Bot. II, 170 (1806). 

 Euemioii Raf. Jour. Phys. XCI, 70 (1820). 

 Leptopyriim Reichb. F1. Germ. 747 (1833). 

 Chrysocoptis Nutt. Trans. Acad. Phil. A^I, 9 (1843). 

 Pteropbyllum Nutt. ]. c. (1843). 

 Baillon, Hist. PI. I. 85; Benth. and Hook., Gen. PI. I, 8: Engler and 

 Prantl, Nat. Pflanz. 3, II, 58; Durand, Incl. Plum. 2; O. Kiintze, Bev. Gen. 

 PI 3; Gray, 111. Gen. 35, 37. 



Living species: 25; arctic and N. temperate regions; 

 E. Asia, Japan and Himalayas; Atl. and Pac. North America; 

 Russia, 6; Europe, 2; Japan, 8; North America, 7; Calif, and 

 Oregon, 4; Can., 5; E. Sts., 2; S. Sts., 3. 



Isopyrum trifolium (Linn.) Britt. Torr. Bull. XVIII, 

 265 (1891). 



Helleborus trifolius Linn. Amoen. II. 355 (1750). 

 Coptis trifolia Salisb. Trans. Linn. Soc. VIII, .305 (1798 ■. 

 Chrysa horealis Raf. N. Y. Med. Rep. V, 350 (1808). 

 Wats, and Coult., Gray's Man. 6 ed. 45; Britt., Fl. N. J. 39; Upham, 

 Fl. Minn. 20; Regel, Fl. O.-Sib. I, 61: Mac. Fl. Can. I, 23; Led., Fl. Ross, 

 1,52; Nym., Fl. Eur.; Miyabe, Fl. Kur. 216; Engl. Prantl, Nat. Pflanz. 

 Ill, 2, 58; Wats., Bibl. Ind. I. 12; Rothr., Alask. 442. 



Iceland; Kamtk. to Mid. Russ., Baikal Sib. and Mid. 

 Japan. 



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

 N. Br. to Rocky mts; S. to N. Eng,, N. J., Md.; W. to Ohio, 

 Iowa, Minn, and Dak.; Alaska. 



Minn, valley: Forest region and perhaps in some 

 prairie bogs; principally in tamarack swamps. 



Herb. : Leiberg 5, Blue Earth Co. ; Sandberg 35, 

 Tower; Roberts 6, Devil's Neck river; Leonard 2, Minneaj)olis; 

 Bailey 312, St. Louis river; Herb. Sheldon 1825, Lake Calhoun. 



Isopyruni biternatiim (Raf.) T. and G. FL I, 660 (1838). 



Enemion biternatum Raf. Journ. Phys. II, 70 (1811?). 

 Isopyrum thalictroides Short, Pi. Kent. I, 8 (1833). 

 Wats, and Coult., Gray's Man. 6 ed. 44; Upham, Fl. Minn. 20; Chap., 

 Fl. S. St. 9; Regel. Fl O.-Sib. I, 62; Mac, Bot. Gaz. XVI, 285; Cov., Fl. 

 Ark. 163; Wats., Bibl. Ind. I, 14. 

 Kamtschkatka. 



North America: Ont. and Minn, to Ohio and Fla. ; W. 

 to Iowa. 



Minn, valley: Forest region; Ft. Snelling to New 



