104 



Withe-rod. 



AGRICULTURAL COLLEGE. 



fNo. 17. 



Viburnum nudum, L. 



Fayette. 



Downy Arrow-wood Viburnum pubescens, Pursh. 



Cranberry Tree. 



Bedstraw. 



Small Bedstraw. 



Button Bush. 



Iron-Weed. 



Blazing Star. 



Joe-Pye Weed 

 Boneset. 



Ames. 

 Viburnum Opulus, L. 



This, or a nearly allied species, is found at Charles City. 

 RUBIACE.E. 



Galium concinnum, Torr. & Gr. 



Burlington. 



Galium trifidum, L. 



Ames ; Grinnell ; Charles City. 



Cepbalantlius occidentalis, L. 



Ames ; Burlington. 



COMPOSITE. 



Vernonia fasciculata, Micbx. 



Ames ; Grinnell ; Charles City ; Burlington. This, on low pas- 

 ture lands, is a somewhat troublesome weed. 



Liatris cylindracea, Micbx. 



Ames; Grinnell. 



Liatris scariosa, Willd. 



Ames ; Indianola ; Grinnell ; Charles City ; Burlington. 



Liatris pyclmostacbya, Micbx. 



Ames ; Indianola ; Grinnell ; Charles City. 



Kuhnia eupatorioides, L. 



Ames ; Grinnell. 



Eupatorium purpureum, L. 



Ames ; Grinnell ; Charles City. 



Eupatorium perfoliatum, L. 



Ames ; Indianola ; Charles City ; Fayette ; Burlington. 



White Snakeroot. Eupatorium ageratoides, L. 



Ames ; Grinnell. 



Aster. Aster sericeus, Vent. 



Ames ; Grinnell ; Charles City. 



Aster patens, Ait. 



Ames ; Grinnell. 



Aster laevis, L. 



Grinnell. 



