No. 17. 1 AGRICULTURAL COLLEGE. 1X5 



COXVOLVULACE-E. 



Hedge Bindweed. Caljstegia sepium, E. Br. 



Ames; Charles City ; Grinnell ; Burlington. A common and 

 troublesome weed infields. 



Dodder. Cuscuta Gronovii, Willd. 



Ames. 



Cuscuta glomerata, Choisy. 



Ames ; Indianola. 



SOLAXACE.E. 



Black Nightshade. Solanum nigrum, L. 



Ames, and elsewhere. Flowers purplish tinged ! % inch 

 broad. Berries eaten in some parts of the State. 



Ground Cherry. Physalis visCOSa, L. 



Ames ; Grinnell ? 



Physalis Pennsylvania, L. 



Ames ; Charles City. 



" Jimson ,» or Thorn jj atur a Stramonium, L. 



Apple. 



Ames, Indianola, Knoxville, and Burlington. An unsightly and 



poisonous weed. 



GEXTIAXACE-E. 



Five -flowered Gen- Gentiana quinqueflora, Lam. 



tiaii - Ames. 



Fringed Gentian. Gentiana crinita, Froel. 



Ames ; Grinnell. 



Whitish Gentian. Gentiana alba, Muhl. 



Ames. 



Closed Gentian. Gentiana Andrewsii, Griseb. 



Ames ; Grinnell ; Charles City. 



Soapwort Gentian. Gentiana Saponaria, L. 



Ames. 



Gentiana puberula, Miclix. 



Ames. 



APOCTNACEJE. 



Spreading Dogbane. Apocynum androssemifolium, L. 



Ames ; Charles City ; Burlington. 



Indian Hemp. Apocynum cannabinum, L. 



Ames ; Burlington. 



