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POLYMNIA Linnteus. 



* P. Canadensis Linnreus. Smaller leaf-cup. 



Baldwin Township, hillside, east of Baldwin Station, August, 

 1886, Alfred Stengel. 



-^' P. Uvedalia Linn;i;us. Larger leaf-cup. 



SILPHIUM Linnc-Eus. 

 ■-i= S. laciniatum Linnaeus. Compass-plant. 



Allegheny, spontaneous in Highwood Cemetery. 



=i- S. trifoliatum l>innaeus. VVhorled rosin-weed. 



ECLIPTA Linn^us. 



* E. alba (Linnaeus). Eclipta. 



Pittsburgh, Allegheny wharf, near Third St., Aug. 15, 1884. 



HELIOPSIS Persoon. 



'■'''- H. helianthoides (Linnaeus). Ox-eye. 

 //. lu'vis I'ersoon. 



BRAUNERIA Necker. 

 ECHINACEA Moench. 

 -•' B. pallida Nuttall. Purple cone-flower. 

 E. ani:;ustifolia De Candolle. 



Sterrett Township, near Brushton, June 20, 1887. C. C. Mellor. 



RUDBECKIA Linnsus. 

 '■■^ R. laciniata Linn;eus. Tall cone-flower. 



* R. hirta Linnaeus. N'ellow cone-flower. 



