146 [Assembly 



Silphium, L. 



ternatum, Retz. Near Niagara. Dr. Eddy. 



Polymnia, L. 



uvedalia, L. Rocky woods. July- August, 

 canadensis, L. Shady hill sides. June-July. 



Xanthium, L. Clot-weed, Cockle-bur. 



§ strumarium, L. Borders of fields, &c. August-September, 

 echinatum, Murr. X. macrocarpum, var. glabratum, D. C. X. 

 orientale, Linn.f., Muhl. X. maculatum, Raf. 

 Sandy shores, near salt water. August. 

 § spinosum, L. Road sides and waste places. September. 



Ambrosia, L. Hog-weed. 



elatior, L. Rag-weed, Bitter-weed. Old fields. August-Sept, 

 triflda, L. Along fences, and in low grounds. August. 



Iva, L. False Jesuits Bark. 



frutescens, L. High-ivater Shrub. Salt marshes. August. 



Heliopsis, Pers. 



lasvis, Pers. Banks of streams. August. 



Rtjdbeckia, L. 



laciniata, L. Moist thickets. July-August. 



Obeliscaria, Cass. 



pinnata, Cass. Rudbeckia pinnata, Vent. Shore of Lake Erie. 

 Dr. Sartwell. 



Coreopsis, L. Tickseed Sunflower. 



trichosperma, Michx. Cedar swamps, Long Island. August. 



ACTINOMERIS, Nutt. 



alternifolia, D. C. A. squarrosa, Nutt. Coreopsis altemifolia, L. 

 Borders of Crooked lake, Yates county. Dr. 

 Sartivell. 



Helianthus, L. Smiflower. 



divaricatus, L. Woods and hill sides. July-August, 

 frondosus, L. Woods. July and August, 

 decapetalus, L. Woods and thickets . August . 

 trachelifolius, Willd. Low grounds . August-September . 

 altissimus, L. Swamps. August. 



