[1.6] Viola sect. Rhizomandinium

Viola sect. Rhizomandinium J. M. Watson, A. R. Flores & Marcussen 

in Watson et al., Viola Subg. Andinium: 193. 2021 (“Rhizomandimium”).

Type species: Viola escondidaensis W. Becker, Bull. Misc. Inform. Kew 1928(4): 135. 1928.

Diagnostic characters.—Perennial herbs. Stem arising from the apex of long, creeping, stolon-like segment.

Included species.—3. 

Viola anitae J. M. Watson, V. escondidaensis W. Becker, V. marcelaferreyrae Nicola, J.M. Watson & A.R. Flores, sp. nov

Distribution.—These two species are both Argentinian endemics with limited but sympatric ranges in northern Patagonia [Neuquén and Río Negro provinces].

Etymology: These species are the only ones in the subgenus with a rhizomatous growth form, hence Rhizomandinium.

1. Marcussen, T. et al. A Revised Phylogenetic Classification for Viola (Violaceae). Plants 11, 2224 (2022). p. 40

2. Watson, J. M., Flores, A. R., Nicola, M. V. & Marcussen, T. Viola subgenus  Neoandinum preliminary monograph Published by Scottish Rock  Garden Club with International Rock Gardener ISSN 2053-7557. Int. Rock Gard. (2021). p. 190

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