122 IOWA ACADEMY OP SCIENCES. 



OLEACE^E. 



Fraxinus americana L. Winneshiek, Allamakee, Clayton, 

 and Clinton Cos. Rich woods, frequent. 



Syringa vulgaris L. Dubuque Co. Many specimens were 

 found along the railroad. 



APOCYNACE^E. 



Apocynum androscemifolium L. Winneshiek, Allamakee, 

 Clayton, and Dubuque Cos. Fields and waste places, fre- 

 quent. 



ASCLEPIADACE^E. 



Asclepias tuberosa L. Winneshiek, Allamakee, and Clayton 

 Cos. Fields, frequent. 



A. incarnata L. Winneshiek, Allamakee, and Clayton Cos. 

 Wet ground, frequent. 



A. cornuti Dec. Winneshiek, Allamakee, Clayton, Dubuque, 

 and Jackson Cos. Fields, common. 



A. phytolaccoidea Pursh. Winneshiek Co. 



A. verticillata L». Winneshiek, Clayton and Dubuque Cos. 

 Open woods, frequent. 



Acerates viridiflora Ell. Allamakee Co. 



GENTIANACE^E. 



Gentiana quinquefolia Lam., var. occidentalis Gray. Win- 

 neshiek Co. ■ 



G. puberula Mx. Winneshiek Co. 



G. alba Muhl. Winneshiek Co. One specimen. 



POLEMONIACE^E. 



Phlox pilosa L. Winneshiek and Scott Cos. Prairies, 

 frequent. 



P. divaricata L. Winneshiek, Allamakee and Clayton Cos. 

 Woods, frequent. 



Polemonium reptans L. Winneshiek, Allamakee and Scott 

 Cos. Rich woods, frequent. 



HYDROPHYLLACEiE. 



Hydrophylhtn virginiewm L. Winneshiek and Allamakee 

 Cos. 



