226 OHIO BIOLOGICAL SURVEY 



1816. Lobelia s.yphalitica L. Blue Lobelia. General and abundant. 



1817. Lobelia puberula Mx. Downy Lobelia. Gallia, Meigs, Hocking. 



1818. Lobelia spicata Lam. Pale Spiked Lobelia. General. 



1819. Lobelia leptostaehys A. DC. Spiked Lobelia. Adams, Gallia, 



Meigs, Hocking, Fairfield, Clark. 



1820. Lobelia inflata L. Indian-tobacco. General. 

 Lobelia kalmii L. Kalm's Lobelia. General. 



Order, Compositales. 



Dipsacaceae. Teazel Family. 



1822. Dipsacus sylvestris Huds. Wild Teazel. General and abundant. 



Naturalized from Europe. 



Ambrosiaceae. Ragweed Family. 



1823. Xanthium pennsylvanicum Wallr. Pennsylvania Cocklebur. 



General. 



1824. Xanthium americaniuu Walt. American Cocklebur. Athens, 



Vinton, Washington. 



1825. Xanthium spinosum L. Spiny Cocklebur. Montgomery County. 



Introduced. 



1826. Ambrosia trifida L. Giant Ragweed. General. 



1827. Ambrosia psilostachya DC. Western Ragweed. Franklin, Lake. 



Introduced from the West. 



1828. Ambrosia elatior L. Roman Ragweed. General and abundant. 



Helianthaceae. Sunflower Family. 



1829. Heliopsis helianthoides (L.) Sw. Smooth Oxeye. General and 



abundant. 



1830. Heliopsis scabi-a Dunal. Rough Oxeye. Erie, Wyandot, Wayne. 



Madison, Ross. 



1831. Verbesina alba L. Verbesina. Rather general. 



1832. Rudbeckia triloba L. Thinleaf Cone-flower. Rather general; 



ro specimens from the east'^rn counties. 



1833. Rudbeckia hirta L. Black-eyed-Susan. General and abundant. 



1834. Rudbeckia fulgida Ait. Orange Cone-flower. Franklin, Union. 



1835. Rudbeckia speciosa Wend. Showy Cone-flower. Montgomery, 



Champaign, Madison, Franklin. 

 1835a. Rudbeckia speciosa sullivanti (Boy. & Bead.^i Rob. No spec- 

 imens. 



