No. 17.1 AGRICULTURAL COLLEGE. 105 



Aster azureus, Lindl. 



Grinnell. 



Aster undulatus, L. 



Grinnell. 



Aster cordifolius, L. 



Ames. 



Aster multinorus, Ait. 



Ames ; Grinnell. 



Aster dumosus, L. (?) 



Ames. 



Aster Tradescanti, L. 



Grinnell. 



Aster miser, L. (?) 



Ames. 



Aster simplex, "Willd. (?) 



Ames ; Grinnell. 



Aster tenuifolius, L. (?) 



Grinnell. 



Aster cameus, Xees. 



* Ames. 



Aster puniceus, L. 



Grinnell. 



Aster prenantlioides, Muhl. 



Ames. 



Aster oblongifolius, Xutt. 



Grinnell. Seems to vary from typical 



Aster Novae Anglise, L. 



Ames. 



I Horse Weed - Erigeron Cauadense, L. 



Grinnell. A rapidly spreading weed. 



Erigeron divaricatum, Miclix. 



Ames. A native weed, of a low and spreading habit, which is 

 intruding on our pastured prairies. 



Robin's Plantain. Erigeron bellidifolium, Muhl. 



Burlington. 



Common Fieabane. Erigeron Philadelphicum, L. 



Ames ; Charles City ; Fayette. 



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