GENERA AND SPECIES 



Hieracium aurantiacum . 



Inula helenium . 



Anthemis coiula . 



Chrysanthemum lewanthe 

 mum . . . • • 



Rudbeckia hirta . 



Rudheckia laciniaia . 



Achillea millefolium 



Carduus spinosissimus . 



Carduus odoralus 



Carduus lanceolatus 



Carduus arvensis 



Centaurea calcitrapa 



Eupatorium purpureum 



Eupaiorium perfoliatum 

 Vernonia noveboracensis 

 Tanacetum mdgare . 

 Anaphalis margaritacea 

 Gnaphalium oUusifolium 

 Gnaphalium decurrens 

 Arctium minus . 

 Solidago .... 

 Helianthus . 

 Aster 



Devil's Paint Brush 

 Elecampane 

 Mayweed . 



Ox-Eye Daisy 

 Black-Eyed Susan 

 Tall Rudbeckia . 

 Yarrow 

 Yellow Thistle 

 Pasture Thistle . 

 Roadside Thistle . 

 Canada Thistle . 

 Purple Star-Thistle 

 Purple Eupatorium 

 Boneset Thoroughwort 

 Iron-Weed . . • 

 Tansy .... 

 Pearly Everlasting 

 Fragrant Everlasting 

 Clammy Everlasting 

 Common Burdock 

 Goldenrod . . • 

 Sunflower . . . 

 Aster .... 



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XXI 



