Triplaris martiana var. martiana Fisch. & C. A. Mey. ex C. A. Mey. 1840

Triplaris martiana Fisch. & C.A.Mey. ex C.A.Mey. (1840: 149) var. martiana Type (designated here):— BRAZIL. (fl), Blanchet 2736 (neotype: K [K 585021, digital image!]). Notes:— The protologue reports the type locality and collector as “Hab. in Brasiliae sylvis ad Rio Cuxipo-Goraçu, Riedel.”. Given that the Rio Coxipo is a river occurring in the State of Mato Grosso, whereas the Mojiguaçu river is located in the state of São Paulo, the type locality remains ambiguous. Concerning the collector (L. Riedel), according to HUH-IB (2022), Riedel’s herbarium and types are mainly kept at LE where, however, we did not find any specimens useful for the purpose of lectotypification. Also, Brandbyge (1986) could not locate this specimen, and Meisner (1855) indicated that he had never seen the plant. According to Art. 9.8 of ICBN, a neotypification is required. We found a Riedel specimen at OXF (OXF 9171) collected in Brazil and labeled as “ Triplaris ”. However, this specimen does not present any other information that could link it with either T. martiana or the type locality on the Rio Cuxipo-Goraçu. The name Triplaris martiana has been widely misapplied.We located several specimens at K (K 585020, K 585021, K 585025, K 585026) annotated as T. martiana (none of these plants were collected by Riedel). Interestingly, K 585025 (Gardner 1829) bears the locality “Guaçú” but represents type material for another name, T. gardneriana. Of these four specimens only one, K 585021 (Blanchet 2736) does not represent type material for either T. gardneriana Wedd. or T. tomentosa Wedd. (both of which Brandbyge 1986 considered synonymous with T. martiana Fisch. & C.A.Mey. ex C.A.Mey.). Blanchet 2736 matches the description of T. martiana given in the protologue and was collected in Brazil. We choose this specimen as the neotype until the Riedel collection can be located.