5l6 TRANS. ST. LOUIS ACAD. SCIENXE. 



ARISTOLO CHI A CE^E. 



Asa rum Canadense, L. Spec. 



Low woods; frequent. 



SANTALA CE^E. 



Comaxdra UMBEL LATA, (L.) Nutt. Gen.— The slum umbellatum t 



L. Spec. 



Prairie; frequent. 



E UPHOR BIA CEjE. 



Euphorbia petaloidea, Engel. in Bot. Mex. Bound, ii. 2, 1859. 



A single specimen found along the railroad near lower gate ; others have been 

 reported, 



E. GrLYPTOSPERMA, Engel. in Bot. Mex. Bound, ii. 2. 1859. 

 Sandy prairie and banks ; common. 



In an open sandy or gravelly soil it is prostrate-spreading; in grassy places it is 

 erect or spreading. 



E. maculata, L. Spec. 



Prairies and banks; common. 

 E. hyperictfolia, L. Spec. 



Fields, pastures, and woods; common. 



Specimens sent to Dr. Millspaugh were pronounced to be this species. E. Pres- 

 lii, Guss. Fl. Sicul. i. 1S37, which much resembles it, may also occur. 



E. marginata, Pursh, Fl. 



Specimens arc occasionally found along the railroad. 



E. corollata, L. Spec. 



Prairie and open woods ; abundant. 

 E. HETEROPHYLLA, L. Spec. 



Rocky woods ; scarce. 

 Bluffs, Iloggatt's woods. Leaves of specimens so far collected are all linear 



and entire. 



E. cyparissias, L. Spec. 



Escaped around gardens. 

 Acalypiia Virgixica, L. Spec. 



Low places; abundant. 



UR TIC A CEJE. 

 Ulmus fulva, Michx. Fl. 



Lowland woods ; frequent. 

 U. Americana, L. Spec. 



Lowland woods ; abundant. 



Woodmen have informed me that formerly the '• Bickory-Elm" (probably U . 



racemosa, Thomas) was rather common, but, on account of its valuable timber, has 



'been almost entirely cut av> 



Celtis oooidentalis, L. Spec. 2d ed. 



Woods; infrequent. 



Cannabis sativa, L. Spec. 



Waste places ; frequent. 

 HUMULU8 LUPUIiUS, L. Spec. 

 I.anks of frequent. 





