60 Mr. Schweinitz on the Genus Viola. ^ 



Pursch Fl. p. 173. n. 12. \ . papilionacea is certainly but 

 a variety. 1 have often met with yellow bearded speci- 

 mens — and can find no other distinguishing mark. 



Muhl. Cat. n. 11. by specimens. 



J^uitall p. 148. n. 5. applies to both. 



V. acaulis. Foliis cordatis, basi cncullatis, dentato-ser- 

 ratis, glabris, venosis. Petiolis subcanaliculatis, glabris, 

 brevioribus sequente. Stipulis raaicalibus, minoribus, lin- 

 earibus, marcidis, ciliatis. 



Floribus oblique flexis violaceis, coeruleis, saepe exalbi- 

 dis. Fetalis latioribus ; infimo, limbo rotundato, barbato. 

 Binis lateralibus etiam barbatis. Barba longa rigida cy- 

 lindracea. Fetalis omnibus intus albescentibus. Calycis 

 laciniis glabris lanceolatis. 



Scapis brevioribus, teretibus ; stipulis minutis, infernis, 

 alternis. 



CapsuUs glabris. Radice crassiuscula, radiculosa- 



With us this is the earliest of all and common in March. 

 At first it is generally very low, and flowers before many 

 leaves are expanded. It varies considerably in the relative 

 length of scape and leaves as it advances, and forms con- 

 siderable tufts in grassy spots and meadows almost every 

 where ; but it is less exclusively attached to moist places. 

 The cucullate form of the younger leaves (the angles at 

 base involute) is common to both species, although more 

 conspicuous in this and generally disappears after the leaves 

 are full grown. The whole plant is perfectly glabrous, but 

 opake. Lobed leaves do rarely occur, as anomalies, I think- 

 but a purplish cast is frequently observable on the lower 

 surface. 



8. Species. V. obliqua. Alton. 



IVildenow p. 1161. n. 6. Persoon Synops p. 254. n, 7. 



Pursch p. 172. n. 8. Muhl. Cat n. 9. by specimens. 



Walter^ s cor data and Elliotfs cucullata in part. 



V. acaulis. Foliis non tarn cucullatis, minoribus, stricti- 

 oribus, ceterum similibus prioris, glaberrimis saepe 

 splendentibus. Petiolis canaliculatis longissimis (folia 

 multoties excedentibus) glabris. Stipulis radicalibus mag- 

 uis, uncialibus, lanceolatis, acuminatis, ciliatis. 



Floribus oblique flexis, ime coeruleis (saepius coloris In- 

 digo.) Fetalis omnibus angustioribus, basi albescentibus, 

 renis luteis et purpureis pictis. Binis lateralibus barbatis, 



