FLOWEBING PLANTS AND FEBNS OF INDIANA. 797 



C. Tora L. Low Senna. 



Found in Floyd County by Dr. Clapp, no data as to station. I 

 have found no other citation for the State. The specific inclu- 

 sion of Indiana in the range of this species both in Gray's Man- 

 ual and Britton and Brown doubtless rests on this collection. If 

 rediscovered it will probably be found along the banks of streams. 



C. Marylandica L. Wild or American Senna. 



Quite common, especially in the southern counties in alluvial 

 or moist, rich soils. It is also found on sand or gravel bars. The 

 most widely known member of the genus within the State. 



Flowering season from middle of June until September. 



Tippecanoe (Cunningham); Kosciusko (Coulter); Daviess (Cle- 

 ments); Jefferson (J. M. Coulter); Putnam (MacDougal); Jay, 

 Delaware, Randolph, and Wayne (Phinney); Franklin (Meyncke); 

 Dearborn (Collins); Gibson and Posey (Schneck); Monroe and 

 Vigo (Blatchley); Noble (Van Gorder); Fayette (Hessler); Kos- 

 ciusko (Coulter); Hamilton and Marion (Wilson); Steuben 

 (Bradner). 



C. occidentals L. Coffee Senna. 



In waste places, usually in sandy soils in the central and south- 

 ern part of the State. Especially abundant in the region of the 

 Knobs. 



Flowers in Julv and Au<nist. 



GLEDITSIA L. 



G. triacanthos L. Honey Locust. Thorn Tree. 



Generally distributed, but never constituting any large per 

 cent, of the forest forms. It is indicative of rich soil. It reaches 

 its greatest development in size in the State in the lower Wabash 

 valley. Dr. Schneck reports the following measurements of a 

 specimen from that region: "Circumference three feet from the 

 ground, eighteen feet; height from roots to first branch, sixty-one 

 feet; total height, one hundred twenty-nine feet." The wood 

 is very heav}% hard, and durable in contact with the soil. It is 

 largely used locally for posts, rails and wagon hubs. Its true 

 value is, however, scarcely appreciated. Low, rich, bottom lands, 

 more rarely on dry, sterile hills. 

 Flowers in May and June. 



