FLOWERING PLANTS A\l> FERN8 OF ENDIANA. 825 



R. aromatica Ait. Sweet-scented Sumac. 



(i?. Canadensis Marsh.) 

 Widely distributed and quite abundant in most parts of the 

 Suite. It is found in thin, sandy soil or on limestone ledges and 

 also in rocky woods. 



Flowers in March and April. 



Tippecanoe (Cunningham); Monroe and Crawford (Blatchley); 

 I ass (Hessler); Jefferson (Barnes); Dearborn (Collins); Franklin 

 (Meyncke); Clark (Baird and Taylor); Lake. 



R. Vernix L. Poison Elder. Poison Sumac. . 



(JR. venenata DC.) 

 This very poisonous form is very largely, if not entirely, eon- 

 fined to the swamp regions of the northern part of the State. It 

 is as a rule quite abundant in the stations in which it occurs. Its 

 favorite location seems to be in tamarack swamps. 

 Flowers in June and July. 



Kosciusko (Coulter): Cass and Marshall (Flessler); Noble (Van 

 Gorder); Hamilton (Wilson); Steuben (Bradner); Lake. 



R. radicans L. Poison, ClimbiDg or Three-leaved Ivy. Poison Oak. 

 (R. Toxicodendron L.) 



In all parts of the State in various situations, and of various 

 habits. It is found as a bush from three to six feet high or as a 

 vine climbing to the height of one hundred fifty feet or more. 

 It usually is found in coarse, rocky or gravelly soils. Very poison- 

 ous to the touch. Its berries are not poisonous, and are largely 

 - eaten by birds. 



Flowers from May until in July. 



Kosciusko (Coulter); Elkhart (Barnes); Dearborn (Collins); 

 Jay, Delaware, Randolph, and Wayne (Phinney); Noble (Van 

 Gorder); Franklin (Meyncke); Clark (Baird and Taylor); Jeffer- 

 son (J. M. Coulter); Gibson and Posey (Schneck); Monroe and 

 Vigo (Blatchley); Putnam (MacDougal); Decatur and Shelby 

 (Ballard); Hamilton and Marion (Wilson); Steuben (Bradner). 



ILICACEiE. Holly Family. 



ILEX L. 

 I. opaca Ait. American Holly. 



In moist woods in sparing quantities in the southwestern coun- 

 ties. I have seen no Indiana specimens of the form, but it is 

 admitted upon the authority of Mr. Robert Ridgwnv. whose 

 monograph of the ''Forest Flora of the Lower Wabash Valle 

 one of the most valuable contributions to our knowledge of that 

 portion of the State. 



