94 



AGRICULTURAL COLLEGE. 



[No. 17 



Common Blue 

 Violet. 



Arrow-leaved 

 Violet. 



Larkspur Violet. 



Bird-foot Violet. 



Downy Yellow 

 Violet. 



Yiola cucullata, Ait. 



Grinnell ; Ames ; Charles City ; Indianola ; Burlington. 



Yar lalmata. 



Found at Fayette and Burlington. 



Yiola sagittata, Ait. 



Fayette. 



Yiola delpliinifolia, Nutt. 



Ames ; Grinnell ; Indianola ; Fayette ; Burlington. 



Yiola pedata, L. 



Ames ; Grinnell ; Charles City ; Fayette ; Burlington. 



Yiola pubescens, Ait. 



Ames ; Grinnell ; Charles City ; Burlington. 



Yiola tricolor, L. var. arvensis. 



Ames. 



HYPERICACE^E. 



Great Saint John's- Hypericum pyramid atum, Ait. 



wort * Ames, rare. 



Hypericum Kalmianum, L. 



Burlington, rare. 



common Saint Hypericum perforatum, L. 



John's-wort. ^ * J ' 



Burlington. A pernicious weed. 



CARYOPHYLLACEjE. 



Bouncing Bet. 

 Cow Herb. 

 Starry Campion. 



Sleepy Catchfly. 



Corn-Cockle. 



Sandwort. 



Saponaria officinalis, L. 



Des Moines ; Charles City. 



Yaccaria 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. 



