Viola cassinensis cassinensis, Taxa Only, Exact Match: 2 Treatments

Viola pseudogracilis subsp. cassinensis Merxm. & A. Schmidt			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 : 278	278
Viola cassinensis subsp. cassinensis			Bartolucci, Fabrizio, Galasso, Gabriele, Rainer, Heimo & Wagensommer, Robert P., 2018, Nomenclatural notes and typification of the name Viola calcarata var. pseudogracilis (Violaceae), Phytotaxa 340 (3), pp. 286-288 : 286-287	286-287