Mr. Schweinitz on the Genm Viola. 77 



altogether with ours ; I am pretty sure it has not been ob- 

 serv^ed before ; at least not distinctly. In a very few in- 

 stances hairs were scattered on the nerves of the underside 

 of young leaves ; otherwise the glabrosity is very constant. 

 It usually flowers before the leaves have fully expanded ; 

 middle of April and beginning of May is its time. 



27. Species, V. kastata. Michaux. 



Persoon, Synops. p. 255. n. 24. Elliott, p. 302. n. 13. 



Michaux, p. 149. Nuttall, p. 150. n. 17. 



Pursch, p. 174. n. 19. Mahl. Cat. n. 19. by Specimens. 



V. caulescens ; glabriuscula. Caule simplici, summitate 

 tantum folioso, debili, saepe atlenuatodeorsum, erectiusculo. 

 glabro, subangulato aut tereti ; interdum purpurascenti. 



Foliis alternis, lanceolato-hastatis, longe acuminatis, lobis 

 obtusis eroso-dentatis, in lanceolata parte, dentibus distanti- 

 bus ; nervis ex fundo emanentibus, in pagina superiori pills, 

 minutis adspersis ; foliis ceterum glabris pagina inferiori, au- 

 tem glaucis et purpureo tinctis. Petiolis brevissimis. Sti- 

 pulis axillaribus minutis, ovato-acuminatis, ciliatis. 



Florihus luteis, extus purpurascentibus, horizontaliter in 

 pedunculis axillaribus, filiformibus, brevioribus foliis, stipu- 

 lis alternis minutissimis. Pelalo infimo dilatato, subtrifido, 

 basi nigro striato, slriis ramosis : Lateralibus, striis paucis ; 

 barba parcissima : in superioribus rudimenta striarum. Ca- 

 lycis laciniis lineari-lanceolatis, longiusculis, attenuatis, sub- 

 dentatis. Kectario non producto. S<?'^ma^etruncato, lateribus 

 fasciculatim piloso. Capsulis glabris. Radice horizontali, 

 corallino-squamosa, bulbosa. 



A very handsomely distinguished kind, very common 

 here in May in shady places and among rotten wood on 

 steep hill sides. The stem is weak and therefore often in- 

 clining. The caulis very often enters deep into the loose 

 soil in which it grows before it expands into the root. Gen- 

 erally five or six inches high. The leaves of almost al! our 

 specimens, present a most perfect exemplification of an has- 

 tate leaf. I am therefore surprised, that Mr. Nuttall re- 

 marks, " they are rarely hastate." Possibly he is acquain- 

 ted with a variety in which this is the case. 



This species is niore generally than any of the rest, af- 

 fected with the Aecidium Violae, which frequently prevents 

 its developement. 



28. Species. V. Muttalli. Pursch. 

 Pursch, p. 174. n. 20. Nuttall, p. 151. n. 18, 



