80 ,Mr. Schweinitz on the Genus Viola. 



calycem vix excedentibus. Cornn nuUo. Calycis laciniis 

 postice porrectis acutis, antice divergentibus lanccolatis. 

 Capsulis maximis oblongis glabris. 



The habit of this plant resembles the Triosteum much 

 more than any of our Violae. The stem is from one to 

 two feet high, rather bending. 



I conclude with a Synoptic table of all our Violae in or- 

 der to facilitate their examination. Traces of a few oth- 

 ers not sufficiently examined lead me to believe, that there 

 are still a number of species in America undescribed. 

 A. Violae acaules. 

 * Floribus papilionaceis, coerulescenlibns, mnjoribus. 

 a. Foliis multipartitis. 



1. V.Pedata. Fo/us pedatis, multipartitis. 



b. Foliis heterophyllis, i. e. integris etdivisis : plus minusve pilosis. 



2. V.palmata. Foliis integr. rarif, palmat. plur. nullis cucuU. SdpuL 



integr. Scap. longitud. folior. Felnlo inf. imberbi. iihgm. 

 depres. marg. Caesp. paucifolios. 



3. V. asarifolia. Foliis integr. plurim. palmat. raris, cucullatis. Stipul. 



divisis. Scap. brevioribxis fol. Pelalo inf. barbato. 

 Stigm. globos. immarg. Caesp. foliosissim. 



4. V. sa^ittata. Foliis integr. Ian' eol. cord ; secundariis oblongis, basi 



sagittato-dentatis mcisis, 



5. V. triloba N. Foliis integr. alteris reniformibus planiusculis, alteris 



trilobJs, 



c. Foliis omnibus indivisis. 



6. V. ovata. Pubesc. undiq. Fol. ovAtis. in petiol. decurrentib. erectis. 



7. V aicullala. Glaberrim. undiq. Fol. cord. cucuU. Stipul. minor, lin- 



ear. Scap. teretibus. Petal, inf. rotundat. barbat. 

 Barb, later, magn. cylindrica. 



8. v. obliqua. Glaberrim. fo/. cord. cucuU. S/yjw/. major ib.lanceol. 



Scap. quadratis. Petal, inf. limbo acum. carin. imbei-b. 

 Barb, later, brev. clnvato-globosa. 



9. V. villosa. Pubesc. pag. sup. Fol. tenuior. planis, cord, renif. venis va- 



riegat. purpurasc. Petal, inf. nudo. Ca/y/ce postice auri- 

 cul. Petiol. glabr. 

 1 10. V. cordifolia. Subpubes. pag. sup. Fol. crassis : sinu rotundat. claii- 

 so. non variegat. Petal, inf. barbato. Cali/ce noii 

 product. Petiol. glabr. 

 ft 11. V. rolundifolia. Florib. lutescent. Fol. glabris, orbicttl. sin. 

 claus. Petiolis pilosis. 

 ** Florilms, rrgi/lanoribits, albcscentilms, minor iljua. 

 + 12. V. lanceolatn. Foliis erect, angnstis, lanceolat, basi attenuatis, 

 glabris. Petiolis glabris marginal. 



13. V. primnlaefoHn. Fo/jw erect, oblong, subrordat. obtus. in petiol. de- 



current; pilociuscul. Petiolis subtus pilos. rubi- 

 cundis. 



14. V. hJanda. Foliis planis, terrae adpress. lafo-cordatis. et orbi- 



culat. Sinn clause rotund. Petiolis longiorib. Flor. 

 albis clatis in pedun. long. 

 t 15. V. ctondtstirw. Foliis planis, caespitose aggregat. lato-cordat. acu- 

 minat. Sinu clauso rotund. Petiolis brevissimis, 

 Flor. chocolatissubterran. in pedun. bre\'. 



