692 



VlOLACEAE 



Viola 



50 



Map 1453 



Viola striata Ait. 



oak or in black oak and white oak woods. Usually in large colonies and 

 rather frequent in the northern counties, becoming rare or absent until 

 the southern counties are reached. Here it is found in similar habitats 

 and is as abundant as in the northern part. This species does well in 

 cultivation and flowers from May until freezing weather. 



N. B. to Sask., southw. to S. C, Ala., Nebr., and in the Rocky Mts. to 

 Ariz, and N. Mex. 



19. Viola Kitaibeliana Roem. & Schultes var. Rafinesquii (Greene) 

 Fern. (Rhodora 40: 443-446. 1938.) (Viola Rafinesquii Greene.) Field 

 Pansy. Map 1451. Infrequent but fast becoming more widely scattered. 

 Most abundant in sandy soil or in sandy clay soil in woodland, fallow, and 

 cultivated fields and along roadsides. There are no reports for it north of 

 Tippecanoe County, although it occurs in Michigan. 



Nat. of Eu. ; Conn, to Nebr., southw. to the Gulf States. 



20. Viola tricolor L. Garden Pansy. This species has been reported 

 from the following counties: Clark (Baird & Taylor) ; Jefferson (Barnes, 

 Coulter) ; Knox (Spillman) ; Shelby (Ballard) ; St. Joseph (Nieuwland) ; 

 and for the Lower Wabash Valley (Schneck) . Nieuwland says it maintains 

 itself in St. Joseph County. 



Nat. of Eu. 



21. Viola arvensis Murr. Field Pansy. Map 1452. This species was 

 reported by Nieuwland as maintaining itself in St. Joseph County. In 1916 

 I found about a ten-acre field of it in Lagrange County. At first I thought 

 the owner was growing this species for its seed but I learned that he had 

 sown clover seed and that this species was so abundant that it had prac- 

 tically crowded out the clover. This place was revisited in 1930 and I 

 found that it had disappeared. 



Nat. of Eu. 



