Mr, Schwelnitz on the Genus Viola. 51 



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5. Species- V» triloba. Nobis. 



With some diffidence I venture to propose this new spe-r 

 cies, notwithstanding its striking characters, because I have 

 found it but rarely. I have however met with it twice or 

 thrice in different years, and in different places — videlicet 

 rich woodland and meadows — ^constantly under the form 

 here described- At all events it deserves to be pointed out 

 for further observation. 



^ V. aeaulis. Foliis biformibus ; alteris exterioribus lato- 

 reniformibus, margine ffrosse crenato-dentatis, sinu recli- 

 lineo integro ; alteris mterioribus frilobls. Lobo medio 

 ovato, grosse dentato, acutiusculo. Lobis binis laterallbus, 

 aequalibus, subbidivisis, basi rotundatis, bastaiim expansis, 

 margine dentatis. Nervis prominentibus in omnibus. Fo- 

 liis ceterum glabriusculis aut raris pilis obsitis, colore lute- 

 scenti-viridi- Petiolis marginatis, glabriusculis, longiuscu- 

 lis, praesertim in foliis trilobatis* Stipulis radicalibus bre-^ 

 viusculis, lanceolatis, glabris. 



Florihns coeruleis, eleganter venosis, subnutantTbus. Pe- 

 talis ovatis purpureo-striatis, albo-barbatis, barba longius- 

 cula. Kectario minori. Superioribus et lateralibus basi 

 attenuatis. Calycis laciniis glabris, lato ovatis, marginatis. 



Stigmate recurvo, marginato, depresso. 



5^c«j7*Vbrevioribus foliis, angulatis glabris. StijyuUs m\n^ 



utis distantibus. 



Capsula ignota. Radice crassa, imdique radiculosa. 



The whole plant has a glabrous habit, although the leaves 

 are sparingly beset with short hair: they are of a remarka- 

 ble yellowish green color and spread considerably, although 

 but few in number with but few flowers in the tuft. I 

 have found this Viola only late in spring. It approaches 

 nearest to some varieties o\ palmata iiora which, however, 

 its whole habit appears to separate it. 



Remark.— ^\\e foregoing are all the species of heterophyl- 

 lous Violae acaules, I have observed, or been able to re- 

 gard as distinct species. Mr. Elliott's var. d. heterophylla o^ 

 palmata, with which I am unacquainted, almost appears to be 

 a distinct species, among the rest, on account of its growth 

 in swamps — where I have never met with any of the recited 

 species. I could however not presume to decide on a plaul 

 entirely unknown to me. 



Vol. V.,...No. T. 8 ^ 



