94 



AGRICULTURAL COLLEGE. 



[No. r 



Common Blue 

 Violet. 



Arrow-leaved 

 Violet. 



Larkspur Violet. 

 Bird-foot Violet. 



Downy Yellow 

 Violet. 



Viola cucullata. Ait. 



Grinnell ; Ames; Charles City ; Indianola ; Burlington. 



Yar palmata. 



Found at Fayette and Burlington. 



Viola sagittata, Ait. 



Fayette. 



Viola delphinifolia, Nntt 



Ames; Grinnell; Indianola; Fayette; Burlington. 



Yiola pedata, L. 



Ames; Grinnell; Charles City ; Fayette; Burlington. 



Viola pubescens, Ait. 



Ames ; Grinnell ; Charles City ; Burlington. 



Viola tricolor, L. var. arvensis. 



Ames. 



HTPEEIOACEJE. 



Great Saint John's- 

 wort. 



Common Saint 

 John's-wort. 



Hypericum pyramidatum, Ait. 



Ames, rare. 



Hypericum Kalmianum, L. 



Burlington, rare. 



Hypericum perforatum, L. 



Burlington. A pernicious weed. 



C A KYOrnYLLACE.E. 



Bouncing Bet. 

 Cow Hero. 

 Starry Campion. 



Sleepy Catchilv. 

 Corn-Cockle. 



Sandwort. 



Sapouaria officinalis, L. 



Des Moines ; Charles City. 



Vaccaria vulgaris, Host. 



Grinnell. 



Silene stellata, Ait. 



Ames ; Grinnell ; Burlington. 



Silene antirrhina, L. 



Ames. 



Lychnis Githago, Lam. 



Ames ; Charles City ; Fayette. Found too often in wheat fields. 



Arenaria lateriflora, L. 



Grinnell ; Fayette. 



