288 IOWA ACADEMY OF SCIENCE Vol. XXVI, 191^ 



AMPHICARPA. 

 A. monoica : East Chase street, Osage. 



Oxalidacese. 

 OXALIS. 



O. violacece : cemetery, Osage ; river bank. 



O. stricta : common weed. 



O. corniciilata: common weed. 



Geraniaceae. 

 GERANIUM. 



G. maculatum : common in open woods. 

 G. carolinianum : Osage. 



Rutacese. 

 ZANTHOXYLUM. 



Z. americanum : common in woods and on the river bank. 



Polygalacese. 

 POLYGALA. 



P. Senega : river road ; Pierce's bridge. 



P. sanguiiiea : railroad track between Osage and St. Ansgar. 



Euphorbiaceae. 

 ACALYPHA. 



A. virginica: common weed, Osage. 



EUPHORBIA. 



E. maculata : East State street, Osage. 

 E. corollata: Fair grounds, Osage. 

 E. cyparissias: cemetery. 



Anacardiaceae. 

 RHUS. 



R. glabra : common along the roadside. 



R. toxicodendron : roadsides, woods, fields. 



Celastracese. 



EVONYMUS. 



E. atropurpurcus: ravine on the Old farm; river banks. 



CBLASTRUS. 

 C. scandens: woods and roadsides. 



