56 jMr. Schweinitz on the Genus Viola. 



Caespitibus paucifloris et paucifo- = foliesissitnis densis, et floribus fre- 

 liosis queat. 



4. Species. V. sagittata. Alton. 



Willdenow. Spec. p. 1160. n. 4. J^uUall. p. 147. n. 3. 



Persoon. Synops. p. 254. n, 4. Elliott, p. 299. n. 8. 



Pursch FI. p. 172. n. 4. Muhl. Cat. n. 5, by specimens. 



ibiLl. dcntala d. 5. a mere var. J^ew-YorkC^i. p. 28. n. 3. 



V. acaulis. Foliis primariis raris lanceolato-cordatis, 

 breviter petiolatis, exterioribus, crenato-dentatls. (saepe 

 omnino carent.) Secundariis longe petiolatis, frequentiori- 

 bus, longis, oblongis, vix acuminatis, margine serratis, basi 

 cordato-sagittatis, incisis, i. e. dentibus elongatis, majuscu- 

 lis distantibus munitis, ceterum glabriusculis, aut pag. supe- 

 riori pubescentibiis. Petiolis plerurnque folia longitudine 

 excedentibus, semiteretibus, pilosiusculis. Stipulis radica- 

 libus longissimis, glabris, lineaii-acuminatis. 



Floribus inversis, mediocribus, purpureo-coeruleis, in 

 scapis longis. Fetalis oblongo-ovatis, intus albeseentibus, 

 omnibus albo-barbatis, excepto inferiori nudo ; omnibus 

 eleganter purpureo-venosis. Cornu obtuso, postice produc- 

 to. Calycis laciniis glabris, marginatis, lanceolatis, acumi- 

 natis. Stigmate rostrato, depresso, marginato. 



Scapis filiformibus, subquadratis, folia interdum exceden- 

 tibus. Stipulis alternis, minutis, distantibus^ infra medium 

 sitis. 



Capsulis glabris, stylo coronatis. 



Radice corallina brevi incrassata ; caespites sparsas ef- 

 formante. 



/3 var. emarginata Nuttall p. 147. foliis fere triangulari- 

 bus. 



7 var. dentata Pursch p. 172. n. 5. foliis basi truncatis. 



This species, although certainly heterophyllous, is so well 

 distinguished by the long-petiolated, oblong, hastately den- 

 tate leaves, that it is not likely to be mistaken. I coincide 

 with Mr. Nuttall in regarding his emarginata and the denta- 

 ta of Pursch as varieties. I have met with both here rare- 

 ly. Indeed the sagittata itself occurs but rarely with us. 

 Elegant specimens have been found at Chapel-Hill by Pro- 

 fessor Mitchell. It appears to be more common towards 

 the north and flowers with us, end of April. In the variety 

 emarginata the scape is often a foot long and exceeds the 

 length of the leaves, notwithstanding these are uncommon- 

 ly long-petiolate. The color of the leaves is remarkably 

 blueish green as in V. primulaefolia. 



