210 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



15. Viola triloba Schwein. 



auSL^t^lTt 1 freq T^ nt ' A ?. r - May - NeW Eng - t0 Ga - ( V - P" 1 ™* of some 

 authors, not of Linnaeus; V. vesper tilionis Greene; V. ornithodes Greene ) 



F. onufefo was described from plants growing in Rock Creek Park- V vesper®, 

 xonis from specimens from Brookland. » mpffW 



16. Viola sororia Willd 



■»*■ • , DOWNY VIOLET 



Moist meadows or banks or in rather dry woods; frequent along the Potomac intoi 

 Greet 6 ) **"**■ Nortl — ««, sonth to N. C. (F.l^t 



17. Viola hirsutula Brainerd. 



Dry fields or hillsides, commonly in pine woods; frequent. Apr.-Mav N Y to 

 Ga. ( V. vxllosa of many authors, not of Walter; V. cucullata cordata of Ward's Flora ) 

 Viola hirsutula X sororia Dowel] 



thanThn 8 ai ! d // attevi 7 Ile - .^ avea in outline similar to those of V. sororia, larger 

 than those of V. hirsutula, with the characteristic pubescence of the latter. 

 Viola hirsutula X stoneana Brainerd 



clTrtftJr7 eS tv*? mUCh ^ iU K St ° neana > but le9a de< *> ^ ^e pubes- 

 cence of V. hirsutula. ( V. stoneana X villosa House.) 



Viola hirsutula X triloba Brainerd. 



J? 1 ' 11 , !!! g °' ^ aVeS With the P ubescenc « of V. hirsutula; lobed as in 7 triloba or 

 some of them only coarsely toothed. ' 



18. Viola cucullata Ait. 



Grte;:°*}rZGrLne S ) SlfreqUent ^'"^ ^ * W <K — 



b££S tlX&SEr*"*"' that of K/0 "*""" ™ M,lected alon8 



Viola cucullata X papilionacea Brainerd. 



the JJJSS ^ 86Veral 8tati0n8 ' ^ generaI CharaCtGra alm ° 8t intermedia ^ between 

 A Plant from Hyattsville was reported by House as V. cucullata X mor^inata Brain- 

 Let mcloTLZTr n ! he 8pecinlens - The Long Island P Iant <* ^-^«- 



a Tv tr • ; ^ \V nterprCtatl ° n Wa8given is *>* believed to be V. cucul- 



tc^:^; e ^r vm plant is con8idered a *» ^ b — 



19. Viola affinis Le Conte. Slende 



G^et t ) mead ° W9aildWOOd8;COmm0n - Apr - Ma ^ Eastern U.S. (K^pJ^oKa 



The type of V. nepetae/olia was collected beyond Anacostia. 

 Viola affinis X cucullata Brainerd. 

 l^rZff^^T 11 ° f Wafihill ^ ton - Diff ering from V. affinis in the larger 



\TZ\Z S ^f? r deiSt T; ilOUS fl0Wer9 ' and Io ^ au "cled sepals; from V. cucullata 

 in the very acute leaves and brown-dotted capsules. 



Viola affinis X hirsutula Brainerd. 



Several scattered stations. Leaves in outline like those of V. affinis, with the 

 pubescence of V. hirsutula. ( V. affinis X villosa Brainerd ) 

 Viola affinis X papilionacea House. 



Widely distributed in our region; the type from Woodridge. Leaves larger than 



Wal t mS ' 5 Ut + T ally re8embli " g thGm in 8h& P e and ^™-> fl °™ and fruTt 

 characters intermediate between those of the parents. ( V. filicetorum Greene ) 



V. Jilicetorum was based upon material from our region. 

 Viola affinis X saoittata Brainerd. 



vSSSL inTi™" betwoeD th0Be of the two P8rent8: -*- 1 - mi ° ute » 



