112 Trans. Acad. Sci. of St. Louis. 



SOLANACEAE. 



Physalis heterophylla Nees. Frequent in dry soil. 



Physalis pumila Nutt. With the last, and about as common. 



ACANTHACEAE. 



Ruellia ciliosa Pursh. Common in dry soil. 



Plantaginaceae. 



Plantago virginica L. Common in dry soil. 

 Plantago aristata Michx. Common with last. 



Rubiaceae. 



Diodia teres Walt. Very common in dry soil. 



Campanulaceae. 

 Specularia leptocarpa (Nutt.) Gray.* Locally frequent in dry soil. 



Valebianaceae. 

 Valerianella radiata (L.) Dufr. Common in thin soil, early wet but 



soon dry. 



Compositae. 



Liatris squarrosa Willd. Infrequent in dry soil along bluffs. 

 RudbecUa hirta L. Common throughout on knolls and in dry soil. 

 RudbecUa amplexicfiuUs Vahl.* Local and uncommon along Silver 



Creek. 



Coreopsis tinctoria Nutt.* Very common in thin soil, early wet but 



soon dry- 

 Coreopsis lanceolata L.* Common in dry soil and in situations sim- 

 ilar to last species. 



Coreopsis pubescens Ell. Uncommon in more sheltered situations. 

 Marshallia caespitosa Nutt. Local in dry gravelly soil, on bluffs 

 near mouth of Silver Creek. 



Issued December 15, 1910. 



