Typifications in Eupatorieae (Asteraceae) Author Rebouças, Natanael Costa Author Giacomin, Leandro Lacerda Author Roque, Nádia Author Bünger, Mariana De Oliveira text Phytotaxa 2022 2022-10-28 570 3 289 294 http://dx.doi.org/10.11646/phytotaxa.570.3.4 journal article 176490 10.11646/phytotaxa.570.3.4 59c9b5a9-1e2e-4141-850b-267a3121f436 1179-3163 7260374 3. Dissothrix imbricata (Gardner) Robinson (1906: 35) . Stevia imbricata Gardner (1846: 458) . Dissothrix gardneri Gray (1851: 223) , nom. illeg. superfl. Lectotype (designated here):— BRAZIL . Província Piauí , May 1839 , G. Gardner 2211 ( K000054172 [digital image!] ; isolectotype K000054173, specimen on the left [digital image!]). Gardner (1846) described Stevia imbricata based on two syntypes from Gardner collections: 1744, collected in the “province of Ceará ”, and 2211, coming from the “province of Piauí ”. In the herbarium of the Royal Botanic Kew Gardens (K), three specimens belonging to these collections are deposited, which are mounted on only two sheets: one sheet associated with the number 2211 (K000054172) and another sheet containing two samples with the numbers 1744 and 2211 assigned to different specimens (K000054173 and K00054174, respectively). Afterwards, Gray (1851) described Dissothrix Gray (1851: 223) and a new species, Dissothrix gardneri , using the same materials cited by George Gardner to describe Stevia imbricata , citing the latter as a synonym of D. gardneri , being, therefore, a superfluous illegitimate name (according to Art. 52 of the ICN). Later, Robinson (1906) proposed a new combination, Dissothrix imbricata (Gardner) B.L. Rob. ; however, did not indicate any type specimen of the basionym. Therefore, among the collections analyzed, we designate G. Gardner 2211 (K000054172, Figure 3 ) as a lectotype , considering that this specimen is in good condition, with the original Gardner label, and on a sheet with a single specimen associated. The material K000054173 (left portion of the card) constitutes an isolectotype and K000054174 is a remaining syntype .