156 



Delphinium Pcnardi Huth. Oquawka area, in the bunch-grass 

 association. 



Menispennaceae 



Menispennum canadensc L. Hanover area, in the dune thicket 

 and mixed forest associations; Havana area, in the blowout thicket 

 association. 



Pumariaceae 



Corydalis micrantha (Engelm.) Gray. Hanover area, in the 

 blowout association on the river dune. 



Crncifcrae 



Draba caroliniana Walt. Hanover area, in the bunch-grass as- 

 sociation, and in sheltered places in the blowsand association on the 

 river dune. 



Lesqiievella argentea (Pursh) MacM. Havana area, in the bunch- 

 grass association. 



Lepidiiitn virginicmn L. Hanover, Winnebago, Dixon, Oquawka, 

 and Havana areas, especially abundant in the Panicnin psendopu- 

 hescens association, a common interstitial in the bunch-grass associa- 

 tion, occasional in the blowsand association, and common in open 

 places in the black oak a^sociation. 



Erysimum parviflorum Nutt. Havana area, in the bunch-grass 

 association. 



Arahis Iwata L. Hanover, Winnebago, and Oquawka . areas, 

 most abundant as an interstitial in the bunch-grass and Paniciim 

 pscudopuhcsccns associations in the Hanover area, also in open places 

 in the black oak association. 



Capparidaccae 



Polanisia grave olens Raf. Hanover, Oquawka, and Havana 

 areas, frequent in the blowsand association and in the black oak for- 

 est. 



Cristatella Jamesii T. & G. Hanover and Havana areas, in the 

 blowsand association. 



Sa.vifragaceae 



Heuchera hispida Pursh. Winnebago area, in the bur oak asso- 

 ciation ; Hanover and Oquawka areas, in the mixed forest associa- 

 tion. 



