202 American Midland Naturalist Monograph No. 7 



3. Capsules glabrous (or with a few gland-tipped hairs) ; stems 

 and leaves glabrous or sparsely glandular-puberulent; 

 plants of wet soil. 



5. Leaves linear or linear-lanceolate, entire or remotely den- 

 ticulate; capsules much broader than long, notched at 

 both ends, much shorter than the pedicels; along ditches 

 and ponds. June-Aug F. scutellata L. 



5. Leaves lanceolate to ovate, serrate or crenate; capsules 

 nearly orbicular. 



6. Leaves short-petioled; plants glabrous throughout; 

 swampy ground in the northern half of the state, rare. 

 June-Aug V. aryiericana (Raf. ) Schw. 



6. Leaves sessile, clasping; plants minutely glandular, at 

 least in the inflorescence; ditches and sloughs in the 

 northern half of 111., not common. June-Sept. {V. 

 connata Raf.] V. catenata Pennell 



2. Racemes tenninal; leaves ovate or oval, entire or obscurely 

 crenate, glabrous; capsules puberulent, orbicular, obcordate, 

 3-4 mm broad; roadsides, fields, or lawns; nat. from Eurasia. 

 Apr.-June V. serpyllijolia L. 



L Flowers solitary in the axils of the upper leaves; plants annual. 



7. Leaves oblanceolate or spatulate to linear, entire or shallowly 

 toothed, glabrous; corolla whitish, 3 mm in diameter; cap- 

 sules emarginate, 3-4 mm broad, the style not more than 0.5 

 mm long; stem glabrous or with gland-tipped trichomes; 

 fields, gardens, and roadsides, common. May-June. [V. 

 xalapensis HBK.] V. peregrina L. 



7. Leaves ovate or oval, serrate or dentate, pubescent; corolla blue; 

 capsules obcordate. 



8. Pedicels 1-2 mm long; corolla 2-3 mm broad; capsules 3-4 

 mm broad; lawns, fields, and waste places, common; nat. 

 from Eur. Apr.-June L. arvensis L. 



8. Pedicels lonsfer. 



'o^ 



9. Pedicels equalling or shorter than the leaves; corolla 4-5 

 mm in diameter; capsules 4-5 mm broad, the sepals 

 ovate or oval, 4-5 mm long; waste places, or in lawns, 

 occasional; nat. from Eur. Mar. -May. [V . polita Fries] 

 V. didyma Tenore 



9. Pedicels as long as the leaves or longer; corolla about 1 cm 

 in diameter; capsules 7-8 mm broad; an occasional weed 

 in lawns and waste ground; nat. from Eur. Apr.-Aug. 

 \y. tournejortii sensu C.C.Gmel., non Schmidt; V. bux- 



baumii Tenore; V. byzantina (Sm.) BSP.] 



V. persica Poir. 



