988 REPORT OF STATE GEOLOGIST. 



H. doronicoides Lam. Oblong-leaved Sunflower. 



An abundant form in several parts of the State. Indicative 

 of dry soil. 



Flowering season, August and September. 



Jefferson (Barnes); Monroe (Blatchley); Clark (Baird and Tay- 

 lor); Jay, Delaware, Randolph, and Wayne (Phinney); Gibson and 

 Posey (Schneck); Putnam (MacDougal). 



H. DECAPETALUS L. Thin-leaved or Wild Sunflower. 



One of the most abundant and widely distributed species of 

 the genus. It is found along streams or in damp woods, reach- 

 ing its greatest profusion and largest size in black loam soils. 

 Usually as indicative of rich soil as of moisture. 



Flowers from July through September. 



Monroe (Blatchley); Daviess (Clements); Clark (Baird and Tay- 

 lor); Jay, Delaware, Randolph, and Wayne (Phinney); Franklin 

 (Meyncke); Gibson and Posey (Schneck); Jefferson (J. M. Coul- 

 ter); Noble (Van Gorder); Tippecanoe (Cunningham); Kosciusko 

 (Coulter); Hamilton (Wilson); Carroll. 



H. TRACHELIIFOLIUS Mill. 



Found in dry soil along fence-rows or roadsides. Definitely re- 

 ported from but few counties, though probably of general oc- 

 currence. 



Flowering season August and September. 



Jefferson (Barnes); Tippecanoe (Skinner); Vigo (Blatchley); 

 Carroll. 



H. strumosus L. Pale-leaved Wood Sunflower. 



Reported from but few counties, but abundant where found in 

 dry, coarse soil. In Tippecanoe found most abundantly on road- 

 sides and in dry woods. 



Flowering season July until October. 



Jay, Delaware, Randolph, and Wayne (Phinney); Tippecanoe 

 (Wright); Hamilton and Marion (Wilson); Carroll. 



H. hirsutus Raf. Stiff-haired Sunflower. 



Well distributed throughout the State, especially in southern 

 and central parts. Not reported north of Tippecanoe County. In 

 dry soils, chiefly in woods or at their border. The densely hirsute 

 stem furnishes a means of ready recognition. 



Flowering season, July to October. 



Harrison (Barnes); Vigo (Blatchley); Daviess (Clements); Jay, 

 Delaware, Randolph, and Wayne (Phinney); Gibson and Posey 

 (Schneck); Tippecanoe (Cunningham); Jasper. 



