282 IOWA ACADEMY OF SCIENCE Vol. XXVI, lyiH 



AGROSTEMMA. 



A. Gifhago: 1114 State street, Osage; wheat field near Nelson's 

 pasture. 



LYCHNIS. 



L. chalccdonica: 1114 State street. 

 L. alba : Spring Park. 



3ILENE. 



^. antirrhina : Riceville, collected by Mrs. Walter Wheeler. 



^. noctiflora : 1 1 14 State street, Osage. 



S. stellata : river road ; common. 



-S". latifolia : Simpson farm in Lincoln township. 



S. vircjinica : Simpson farm in Lincoln township. 



SAPONARIA. 



6". officinalis: common. 



S. vaccaria: 1114 State street, Osage. 



Portulacaceae. 

 CLAYTONIA. 

 C. virginica : common in rich woods. 



PORTULACA. 



P. olcracca : common weed. 



Ceratophyllaceae. 

 CERATOPHYLLUM. 

 C. detiiiti'suin : Spring Park. 



Nymphasaceae. 

 NYMPH^A. 



A'', advcna : common in still w'ater. 



CAST ALIA. 

 C. odorafa : In still water. 



Ranunculaceae. 

 RANUNCULUS. 



R. abortivus : common weed. 



R. septentrionalis : moist places. 



R. poinsyhi'aniciis : bank of Cedar river. 



