916 REPORT OF STATE GEOLOGIST. 



SOLANUM L. 



8. nigrum L. Black or Garden Nightshade. 



Common throughout the State, in shaded waste places. Often 

 found close to walls. Never widely spreading. 



Flowers from July through October. 



Tippecanoe (Cunningham); Daviess (Clements); Jefferson 

 (Barnes); Carroll (J. M. Coulter); Gibson and Posey (Schneck); 

 Clark (Baird and Taylor); Dearborn (Collins); Franklin 

 (Meyncke); Jay, Delaware, Eandolph, and Wayne (Phinney); 

 Noble (Van Gorder); Putnam (MacDougal); Decatur and Shelby 

 (Ballard); Steuben (Bradner); Fayette (Hessler); Vigo (Blatch- 

 ley); Hamilton and Marion (Wilson). 



S. Carolinense L. Horse Nettle. 



In dry fields, waste places and by roadsides. An annoying 

 weed in the southern counties becoming less common in the 

 northern. It prefers soils with considerable admixture of sand. 

 Locally known as "Tread-soft" by the negroes in the southern 

 counties. 



Flowers from May until September. 



Tippecanoe (Cunningham); Daviess (Clements); Jefferson 

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

 Franklin (Meyncke); Noble (Van Gorder); Vigo (Blatchley); Put- 

 nam (MacDougal); Vermillion (Wright); Decatur and Shelby 

 (Ballard); Montgomery; Hamilton and Marion (Wilson); Fayette 

 (Hessler). 



S. rostratum Dunal. Sand Bur. Prickly Potato. Texas Nettle. 



This species undoubtedly entered the State as a migrant, com- 

 ing from the West. It was noted in Lake County in 1887, and 

 in Vigo in 1888. As the species is included in all lists of the 

 "worst weeds of the United States," it was feared that it would 

 soon become troublesome. Since that time but few new stations 

 have been reported, and where established the plant does not 

 spread rapidly. Prefers sandy soils in open places. 

 Prefers sandy soils in open places. 



Flowers from May through September. 



Vigo (Blatchley); Lake (Hill); Madison (Walker); Marion 

 (Hessler); Sullivan (Blatchley); Porter (Hill); Montgomery. 



