Viola jordanii, Hanry

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 275

publication ID	https://doi.org/10.5281/zenodo.293200
persistent identifier	https://treatment.plazi.org/id/03B0402C-FEE4-E24D-FF2C-F3BDDF65F00A
treatment provided by	Plazi
scientific name	Viola jordanii
status

Treatment

25. V. jordanii Hanry View in CoL , Prodr. Hist. Nat. Var 169 (1853).

Stems up to 40 cm, erect. Leaves cordate, dimorphic; the lower about as long as wide, the upper triangular-lanceolate, 2-3 times as long as wide. Stipules up to 4 cm, conspicuous, the lower dentate, the upper almost entire, equalling or exceeding petiole. Flowers c. 2-5 cm, pale blue or white; spur c. 5 mm, curved upwards. 2« = 40. Marshes and fens. S.E. & E.C. Europe: S.E. France. Bu Ga Hu Ju Rm Rs (W, K).

Species of Sect. Viola subsect. Rostratae (12-25) frequently hybridize with one another, but very rarely with species of other subsections. Of the 25 or more hybrids described, the following, which are all highly infertile, are probably the most frequent:— V. mirabilis x riviniana , V. rivinianaxrupestris , V. reichen- bachianaxriviniana, V. canina x riviniana , V. canina x persicifolia , V. canina x pumila , V. canina x rupestris .