Class V. Order I. 97 



VIOLA CUCULLATA. Ait. Hood leaved Violet. 



Stcmless ; leaves heart shaped, rolled in at base ; 

 petioles not margined. 

 Syn. VIOLA STRIATA. ? Schweinitz. 



The most common blue violet of our wet meadows and low 

 grounds. The leaves are strongly heart shaped and crenate ; 

 the petioles commonly much longer than the leaves. Both are 

 sometimes hairy, and sometimes smooth. Scapes four angled. 

 Flowers large, purple, the lateral petals bearded, the beard glan- 

 dular or not so. I have not been able to satisfy myself of a per- 

 manent difference between this plant and V. striata. May. 

 Perennial. 



VIOLA ROTUNDIFOLIA MX. Round leaved yellow Violet. 

 Stemless ; leaves orbicular-cordate with the sinus 

 closed, slightly toothed, smoothish ; petiole pubes- 

 cent ; calyx obtuse. 



A yellow violet of small size when in perfect flower in May, 

 but becoming larger with coriaceous leaves and apetalous flow- 

 ers in summer. In old woods in the western parts of the state. 

 Perennial. 



A cospecies or variety is found with longer leaves. 



VIOLA DEBILIS. MX. Spreading Violet. 



Caulescent; smooth, leaves reniform-cordate, some- 

 what acuminate, crenate ; peduncles twice as long as 

 the leaves ; stipules ciliate-serrate. 



Stems angular. Leaves heart shaped, crenate, nearly smooth. 

 Mi pules linear-lanceolate, with loose spreading teeth. Peduncles 

 longer than the petioles with two linear bractes. Calyx leaves 

 smooth, lanceolate, acute. Petals pale purple, the two lateral 

 ones bearded inside. Stigma rostrate. On the Concord turn- 

 pike in Cambridge. June. 



VIOLA CANADENSIS. L. Canada Violet. 



Caulescent ; smooth : leaves cordate, acuminate., 



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