Nomenclatural and taxonomic study in species of Viola (Violaceae) from Argentina Author Nicola, Marcela Viviana Instituto de Botánica Darwinion, Labardén 200, C. C. 22, C. P. B 1642 HYD, San Isidro, Buenos Aires, Argentina Author Salomón, Luciana Instituto de Botánica Darwinion, Labardén 200, C. C. 22, C. P. B 1642 HYD, San Isidro, Buenos Aires, Argentina Author Zuloaga, Fernando Omar Instituto de Botánica Darwinion, Labardén 200, C. C. 22, C. P. B 1642 HYD, San Isidro, Buenos Aires, Argentina text Phytotaxa 2018 2018-02-13 338 2 151 176 http://dx.doi.org/10.11646/phytotaxa.338.2.1 journal article 10.11646/phytotaxa.338.2.1 1179-3163 13719903 Viola hieronymi W. Becker (1922a: 185) Type :— ARGENTINA . La Rioja : Sierra Famatina , en las cercanías de la Mina Jareta , 25 January 1879 , G. Hieronymus & G. Niederlein 804 ( holotype , B [destroyed]; lectotype , designated here CORD 00003354 [digital image!]; isolectotype , SI 003773!) . Protologue citation :—“ Exs. Hieronymus et Niederlein Flora Argentina no. 804: Prov. de la Rioja , Sierra Famatina 1. en las cercanías de la mina Jareta , fl. 25. I. 1879 ; 2. entre la mina la Jareta y la altura del Espiritu Santo, fl. 25. I. 1879 (Herb. Mus. bot. Berol.).” Distribution :—Endemic of La Rioja province , Argentina . Notes :—Evidently there were three specimens with the same number which were deposited in different herbaria, as we have also found specimens at CORD and SI. The B holotype is destroyed (Robert Vogt pers. comm.), so we selected the specimen with the barcode number CORD 00003354 as the lectotype of the species because it is an abundant and complete specimen, agrees with the protologue, and provides a label with clear annotations handwritten by Georg Hieronymus.