"'46 REPORT OF STATE GEOLOGIST. 



CALTHA L. 



C. palustris L. Marsh Marigold. Marsh Cowslip. 



Frequent in wet places in many parts of the State. Usually 

 found in marshes and swamps. In some of the central counties 

 it is rare, but in most stations is quite common. 



Flowers in April and May. 



Tippecanoe (Cunningham): Kosciusko (Coulter); Cass (Hess- 

 ler); Monroe and Yigo (Blatchley); Putnam (MacDougal); 

 Franklin (Meyncke); Noble (Van Gorder); Jay, Delaware. Ran- 

 dolph and Wayne (Phinney); Fayette (Hessler); Knox (Spillman); 

 St. Joseph (Rothert); Decatur and Shelby (Ballard); Hamilton 

 (Wilson); Steuben (Bradner). 



COPTIS Salisb. 



C. trifolia (L.) Salisb. Gold-thread. 



This northern species was first recorded as a member of the 

 State flora by Mr. W. B. Van Gorder. With us it is found only in 

 the northern counties growing in sphagnum morasses or tamarack 

 swamps. Its yellow root is bitter to the taste, and because of its 

 supposed healing properties has given to the plant the name 

 •'Canker Root," Xot abundant in any of its stations. 



Flowering from May through July. 



Fulton (Hessler); Xoble and Dekalb (Van Gorder); Steuben 

 (Bradner). 



ISOPYRUM L. 



I. biternatum (Raf.) T. and G. False Rue Anemone. 



A common spring form in most parts of the State growing in 

 moist open woods and shady places. It prefers rich soil, rarely 

 being found in sandy soil. In the southern counties it is excep- 

 tionally plentiful in beech woods. 



Flowering season, May and June. 



Jefferson (Barnes); Tippecanoe (Cunningham); Monroe and 

 Vigo (Blatchley); Putnam (MacDougal); Gibson and Posey 

 (Schneck); Cass (Hessler); Daviess (Clements); Kosciusko (Coul- 

 ter); Noble (Van Gorder); Clark (Baird and Taylor); Franklin 

 (Meyncke); Knox (Spillman); Shelby (Ballard); Hamilton and 

 Marion (Wilson). 



