LIST OF HIGHER SEED-PRODUCING PLANTS. 231 
Holzinger 9, Winona Co.; Hammond 2, Lake City; Herb. Sheld. 
1828, Ramsey Co.; Herb. Moyer 19, Montevideo. 
ISOPYRUM Linn. Gen. ed. IT, 533 (1742). 
Coptis Saviss. Linn. Trans. VIII, 305 (1807". 
Chrysa Rar. Desf. Journ. Bot. II, 170 (1806). 
Enemion Rar. Jour. Phys. XCTI, 70 (1820). 
Leptopyrum Reicus. Fl. Germ. 747 (1833), 
Chrysocoptis Nurr. Trans. Acad. Phil. VII, 9 (1843). 
Pterophyltum Nutt. 1. c. (1843). 
Baillon, Hist. Pl. I. 85; Benth.and Hook., Gen. Pl. I, &: Engler and 
Prantl, Nat. Pflanz 3, 11, 58: Durand, Ind. Phan. 2: O. Kuntze, Rev. Gen. 
Pl, 3: Gray, Ill. 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 (Liny.) Britr. Torr. Bull. XVIII, 
265 (1891). 
Helleborus trifolius LINN. Amoen. IT, 355 11750). 
Coptis trifolia SALIsB. Trans. Linn. Soc. VIII, 305 (1798 
Chrysa borealis 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, 
I, 52: Nym., Fl. Eur.; Miyabe, Fl. Kur. 216; Engl. Prantl, Nat. Pflanz. 
III, 2, 58; Wats., Bibl. Ind. I, 12; Rothr., Alask. H2. 
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. 
HeErRB.: Letbeirg 5, Blue Earth Co.: Sandberg 35, 
Tower; Roberts 6, Devil's Neck river; Leonard 2, Minneapolis; 
Bailey 312, St. Louis river; Herb. Sheldon 1825, Lake Calhoun. 
Isopyrum biternatum (Rar.) T. and G. Fi. I, 660 (1838). 
Enemion biternatum RAF. Journ. Phys. II, 70 (1811?). 
Isopyrum thulictroides SHoRT, Pl. Kent. I, 8 (1333). 
Wats. and Coult., Gray's Man. 6 ed. 44: Upham, Fl. Minn. 20: Chap., 
FI. S. St. 9; Regel, F] O.-Sib. I, 62: Mac., But. Gaz. NVI, 285; Cov., Fl. 
Ark. 163; Wats., Bibl. Ind. I, li. 
Kamtschkatka. 
North America: Ont. and Minn. to Ohio and Fla.; W. 
to lowa. 
Minn. valley: Forest region; Ft. Snelling to New 
