292 IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



DODECATHEON. 



D. meadia : Riceville, collected by Mrs. Walter Wheeler. 



Oliacese. 

 FRAXINUS. 



F. americana : Simpson farm in Lincoln township. 

 F. pennsyhanica : river road ; banks of Cedar river. 

 F. pennsyhanica var. lanceolata: corner 9th and Main streets, 

 Osage. 



F. nigra : Spring park. 



Gentianaceae. 



GENTIANA. 



G. quinque folia: Pierce's bridge. 

 G. flavida : Old lime kiln. 



G. linearis: river bank between Pierce's bridge and the Middle 

 bridge. 



Apocynaceae. 

 APOCYNUM. 



A. androsamifolium : roadside. 



A. cannabinum : roadside; near river. 



Asclepiadaceae. 

 ASCLEPIAS. 



A. tiihcrosa: fields and banks of river. 



A. incarnata: South 7th street; wet places. 



A. syriaca: roadside. 



A. verticillata: railroad track. 



A. phytolaccoidcs: St. Ansgar. 



Convolvulacese. 

 CONVOLVULUS. 



C. scpiuni: South 7th street, Osage. 

 C. arvcnsis : six miles south of Osage. 



CUSCUTA. 



C. arvcnsis : South 4th street, Osage. 



Polemoniaceae. 

 PHLOX. 



F. maculata : Riceville, collected by Mrs. Walter Wheeler. 

 F. pilosa : cemetery, Osage ; prairies. 

 P. dic'aricata : common in all woods. 



