100 



AGRICULTURAL COLLEGE. 



[No. 17. 



Choke Cherry. 



Wild Black Cherry. 



Nine-Bark. 



Meadow-Sweet. 



Agrimony. 



Avens. 



Norway Cinque-foil. 

 Common Cinque-foil 



Wild Strawberry. 



Primus Yirginiana, L. 



Ames ; Charles City ; Fayette ; Burlington. 



Primus serotina, Ehrhart. 



Ames ; Grinnell ; Fayette ; BurliDgton. 



Spiraea opulifolia, L. 



Charles City. 



Spiraea salicifolia, L. 



Charles City. 



Agrimonia Eupatoria, L. 



Ames ; Charles City. 



Geum album, Gmelin. 



Ames. 



Geum trinorum, Pursh. 



Charles City ; Fayette. 



Potentilla Norvegica, L. 



Ames. 



Potentilla Canadensis, L. 



Ames ; Charles City ; Fayette ; Burlington. 



Potentilla arguta, Pursh. 



Ames ; Grinnell ; Charles City. 



Fragaria Yirginiana, Ehrhart. (var. Illinoensis.) 

 Ames. 



Wild Red Raspberry Pubus StrigOSUS, Michx. 



Wild Black Rasp- 

 berry. 



Wild Blackberry. 



Wild Rose. 



Wild Rose. 



Black Thorn. 



Ames ; Charles City ; Fayette. 



Pubus occidentalis, L. 



Ames ; Charles City ; Fayette ; Burlington. 



Pubus villosus, Ait. 



Ames ; Charles City ; Fayette ; Burlington. 



Posa lucida, Ehrhart. 



Ames ; Burlington. 



Posa blanda, Ait. 



Ames ; Fayette. These two species of Rosa seem to be too 

 nearly alike. 



Crataegus tomentosa, L. 



Ames ; Indianola ; Fayette. 



Yar. punctata, Gray. 



Ames. Other forms are found in abundance, but they 

 seem to be not sufficiently fixed, for classifying. 



