No. 17.] 

 Pine Sap. 



Common 



Plantain. 



Rib-grass. 



Shooting Star. 

 Tufted Loosestrife. 

 Loosestrife. 



Trumpet Creeper. 



Mullein. 



Butter and Eggs. 



Figwort. 

 Beard Tongue. 



Monkey Flower. 



AGRICULTURAL COLLEGE. m 



Monotropa Hypopitys, L. 



Fayette. 



PLANTAGINACEyE. 



Plantago major, L. 



Ames ; Burlington, common. 



Plantago lanceolata, L. 



Ames. 



PBIMULACE/E. 



Dodecatheon Meadia, L. 



Charles City ; Fayette ; Burlington. 



Lysimachia thyrsiflora, L. 



Ames. 



Lysimachia ciliata, L. 



Ames. 



Lysimachia longifolia, Pursh. 



Ames ; Grinnell. 



BIGNONIACE/E. 



Tecoma radicans, Juss. 



Burlington. 



SCROPHULARIACEyE. 



Yerbascum Thapsus, L. 



Ames ; Burlington. A slovenly weed coming to us from the 

 East. 



Linaria vulgaris, Mill. 



Indianola ; Des Moines ; Charles City. "A pernicious weed." 



Scrophularia nodosa, L. 



Ames ; Charles City. 



Pentstemon pubescens, Solander. 



Burlington. 



Pentstemon grandiflorus, Fraser. 



Dubuque. 



Mimulus ringens, L. 



Ames ; Grinnell. At the latter place Professor Parker describes 

 it as having a stem four-angled ; two opposite sides convex, 

 the other two deeply concave 



