2^2 DAVENPORT ACADEMY OF SCIENCES. , 



Actinomeris, Nutt. 



416. A. squarrosa, Nutt. 



Borders of woods, Muscatine county ; infrequent. Near 

 Davenport. 



Coreopsis, L. Tickseed. 



417. C tinctoria, Nutt. 



Escaped from cultivation near Fruitland. (Mackenzie.) 



418. C. palmata, Nutt. 



Dry hillsides and prairies ; common. 



419. C. tripteris , L. Tall Coreopsis. 



Frequent in vicinity of Cedar River; infrequent elsewhere. 



420. C. trichosperma, Michx. Tickseed Sunflower. 

 Low grounds; wet meadows ; frequent. 



421. C. trichosperma, Michx., var. tenuiloba. 

 Maysville, Scott county, 1896. 



422. C. aristosa, Michx., var. mutica. 



Low grounds near Wilton and Atalissa. 



423. C. i?ivolucrata, Nutt. 



Low grounds near Walcott. 



424. C. discoidea, Torr. & Gray. 



In low wet ground, West Davenport. 

 Bidens, L. Burr Marigold. 



425. B. frondosa, L. 



Moist waste places ; very common. 



426. B. connata, Muhl. 



Infrequent in swampy grounds, West Davenport. 



427. B. connata, Muhl., var. comosa, Gray. 

 Moist waste places ; common. 



428. B. cernua, L. 



Low wet grounds ; frequent. 

 Galinsoga, Ruiz & Pavon. 



429. G. parviflora, Cav. 



Streets of Northwest Davenport near Fair Grounds. Abund- 

 ant over a limited area. 

 Helenium, L. 



430. //. autumnale, L. 



River banks and low ground ; common. 



