824 REPORT OF STATE GEOLOGIST. 



Monroe and Vigo (Blatchley); Putnam (MacDougal); Jay, Del- 

 aware, Randolph, and Wayne (Phinney); Marion: Hamilton (Wil- 

 son); Porter (Hill); Tippecanoe. 



ANACARDIACE^E. Sumac Family. 



KHUS L. 



R. copallina L. Dwarf or Black Sumac. 



In dry soil, chiefly on hills and ridges. Most frequent in the 

 southern part of the State. The form is not poisonous, but 

 should be handled with care by persons with sensitive skins. 

 "The leaves and bark contain much tannin, and are collected in 

 large quantities in the southern states and ground for tanning 

 leather." (Britton and Brown.) 



Flowers in June and July. 



Kosciusko (Coulter); White (Hussey); Franklin (Meyncke); 

 Jefferson (J. M. Coulter); Clark (Baird and Taylor); Monroe 

 (Blatchley); Steuben (Bradner). 



R. HiRrA (L.) Sudw. Staghorn Sumac. 



(R. typhina L.) 

 In various parts of the State on hillsides or in sandy or gravelly 

 soil. While frequent, it is not especially abundant in any of its 

 stations. The bark is rich in tannin. 

 Flowers in June and July. 



Franklin (Meyncke); Jay, Delaware. Randolph, and Wayne 

 (Phinney); Noble (Van Gorder); Gibson and Posey (Schneck); 

 Kosciusko (Chipman); Lake; Steuben (Bradner). 



R. glabra L. Scarlet Sumac 



Common in all parts of the State in sandy or gravelly soil, oc- 

 cupying waste places often to the exclusion of all other shrubs. 

 The foliage sometimes used in tanning. Not poisonous, but in 

 some cases known to have caused serious eruptions of the skin. 



Flowers from June through August. 



Tippecanoe (Cunningham); Jefferson (J. M. Coulter); Put- 

 nam (MacDougal); Dearborn (Collins): Jay. Delaware. Randolph, 

 and Wayne (Phinney); Noble (Van Gorder): Franklin (Meyncke): 

 Gibson and Posey (Schneck); Clark (Baird and Taylor); Monroe 

 and Vigo (Blatchley); Decatur and Shelby (Ballard); Hamilton 

 and Marion (Wilson); Steuben (Bradner). 



