994 REPORT OF STATE GEOLOGIST. 



H. NUDIFLORUM Nlltt. 



Less widely distributed and much less frequent than the pre- 

 ceding. It is usually found in moist places, but thrives well in 

 dry soil if rich. It is confined to the central and 'southern 

 counties. 



Flowering begins in June and continues until the frosts. 



Vigo (Blatchley); Monroe (Dudley); Jay, Delaware, Randolph, 

 and Wayne (Phinney); Gibson and Posey (Schueck); Marion and 

 Jefferson. 



DYSODIA Cav. 



D. papposa (Vent.) A. S. Hitchcock. Fetid Marigold. Yellow Dog- 

 fennel. 



(D. chrysanthemoides Lag.) 

 "Widely distributed and abundant throughout the State. Many 

 roadsides are for miles covered with this species. In this situation 

 it prefers the gravelly soils. Where there is more moisture it af- 

 fects sandy banks. It is in many places apparently replacing the 

 common dog fennel, Antliemis Cotula. Characterized by its 

 strong, unpleasant odor. 



Flowers from July through October. 



Knox (Spillman); Kosciusko and Tippecanoe (Coulter); Cass 

 (Hessler); Harrison, Jennings, and Johnson (Barnes); Putnam 

 and Union (MacDougal); Jay, Delaware, Randolph, and Wayne 

 (Phinney); Clark (Baird and Taylor); Franklin (Meyncke); Ma- 

 rion; Jefferson; Monroe and Vigo (Blatchley); Fayette (Hessler); 

 Hamilton (Wilson). 



ACHILLEA L. 



A. Millefolium L. Yarrow. 



Common throughout the State, being found in greatest abun- 

 dance along roadsides, and in old fields and meadows. It does 

 well by the side of a road in hard dry soil, and dust-laden air, and 

 thrives equally in moist soil at the edge of a pond or small lake. 



Commencing to flower in June, it continues until the heaviest 

 frosts. 



Jefferson (Barnes); Monroe and Vigo (Blatchley); Fayette 

 (Hessler); Daviess (Clements); Clark (Baird and Taylor); Jay, 

 Delaware, Randolph, and Wayne (Phinney); Dearborn (Collins); 

 Franklin (Meyncke); Gibson and Posey (Schneck); Noble (Van 

 G order); Putnam (MacDougal); Tippecanoe (Cunningham); Kos- 

 ciusko (Coulter); Vermillion (Wright); Knox (Spillman); De- 

 catur and Shelby (Ballard); Hamilton and Marion (Wilson); Steu- 

 ben (Bradner). 



