178 UNIVERSITY OF MISSOURI STUDIES [S^O- 



256. LEOHEA L. Pinweed. 



649. L. major Michx. [Z. villosa Ell.]. Large pinweed. 

 Sterile hills and clay barrens; frequent. 

 Massachusetts to Michigan and Nebraska; Florida to- 



Texas. 



650. L. tenuifolia Michx. Thin pinweed. 

 Abundant in all barren places. 



Massachusetts to Wisconsin; Florida to Texas; Cuba. 



Family 73. VIOLACEAE DC. Violet family. 



257. HYBANTHUS Jacq. ISOLEA Spreng.: 

 CUBELIUM Raf.]. 



651. H. concolor (Forst.) Spreng. [5. concolor (Forst.) 

 Ging.: C. cijw^o/u^ (Forst.) Raf.]. Green violet. 



Abundant on rich hillsides. 



New York and Ontario to Michigan; North Carolina 

 to Kansas. 



258. VIOLA L. Violet. 



652. V. pedata L. \y . pedata bicolor Pursh]. Pansy vio- 

 let. 



Pansy Hill and red clay barrens; scarce. 

 New England to Maryland and District of Columbia; 

 Missouri. 



652a. V. pedata lineariloba DC. [K pedata Auct.]. 

 Bird's-foot violet. 



With the type but much commoner: biologically this is 

 the species, while the type is the variety. 



Maine and Ontario to Minnesota and South Dakota; 

 Florida to Missouri. 



653- V. palmata L. Palmate-leaved violet. 



Dry oak thickets and forests; scarce. 



Maine and Ontario to Minnesota; Georgia to Arkan- 

 sas. 



