Mr. Sckweinitz on the Genus Viola. ?3 



Foliis cordatis acutis, glabris, eroso-dentatis; inferioribus 

 longe-petiolatis, ceteris breviter. Siipulis axillaribus lance- 

 olatis, serrato-ciliatis. Petiolis glabris, marginatis.. 



Florihus coeruleis, nectario longissimo, roslrato, porrec- 

 to, corollam duplo excedente. Fetalis omnibus imberbibus, 

 extus purpureis. Pedunculis duplo longioribus foliis, me- 

 dio stipulatis, stipulis alternis. Calycis laciniis brevibus, 

 acuminatis. Stigmate glabro, erecto, attenuato-clavato, 

 erostrato. 



Capsula deest. Radice perpendiculari non radiculosa. 



This very distinct Viola does not grow with us, and prob- 

 ably not in the Southern States. Very handsome speci- 

 mens from Pennsylvania and from Albany, New-York, are 

 in my collection. It grows on shady rocks. 



23. Species. V. tripartita. Elliott. 



Elliott, p. 302. n. 14. 



J^uttall, p. 150. n. 16. 



V. caulescens ; pilosa ; caule simplicissimo, teretiiisculo, 

 subpedali; apice tantum folioso. 



Foliis paucis in summo caule, profunde tripartitis, lobis 

 lanceolatis dentatis: pagina inferiori, praesertira in nervis 

 pilosis. Petiolis breviusculis pilosis. Stipulis axillaribus 

 minutis villosis, ovatis aut lanceolatis, integris aut subserra- 

 tis, medio nervo percurrente costatis. 



Floribus mediocribus luteis, in pedunculis axillaribus fili- 

 formibus, brevibus, medio stipulatis. Pttalis superioribus 

 purpureo-striatis, non barbatis. Kectario brevissimo, vix 

 producto, obtuso, Calycis laciniis breviusculis acutis. 5"%- 

 mate globoso pubescente. 



Radice fasciculosa, ex radiculis paucis crassis. Capsula 

 non visa. 



No doubt this species, as Mr. Nuttall observes, belongs 

 to the relationship oi pid)escens as well as the two following 

 ones ; but it is obviously a distinct species, being the only 

 caulescent Viola with lobed leaves. We have met with it 

 in our neighbourhood very rarely indeed, but in good spe- 

 cimens agreeing with Mr. Elliott's description in every res- 

 pect, only, not exceeding six or eight inches in height. The 

 petals have outside in some instances a purplish cast like 

 those of hastata, and like that it begins to flower before the 

 leaves are fully expanded. It was found in shady woods in 

 May. 



Vol. V No. I. 10 



