A nomenclatural conspectus of Waltheria (Malvaceae, Byttnerioideae) in Brazil

Janice G. Saunders; Laurence J. Dorr

doi:10.14522/darwiniana.2022.101.953

Authors

Janice G. Saunders Instituto de Botánica Darwinion (ANCEFN-CONICET), Labarden 200, Casilla de Correo 22, B1642HYD San Isidro, Buenos Aires, Argentina.
Laurence J. Dorr National Museum of Natural History, Department of Botany, MRC-166, Smithsonian Institution, P.O. Box 37012, Washington, D.C. 20013-7012, U.S.A. https://orcid.org/0000-0001-7157-363X

DOI:

https://doi.org/10.14522/darwiniana.2022.101.953

Keywords:

Astropus, Brazil, lectotypes, Malvaceae, neotype, types, Visenia, Waltheria

Abstract

A nomenclatural conspectus is presented for the species of Waltheria (Malvaceae: Byttnerioideae) that occur in Brazil. Synonymies for 33 species, 23 endemic, are presented. Seven names are newly synonymized. In addition, eight excluded or unresolved names are discussed. Thirty-nine lectotypes are designated for Waltheria names, one neotype is designated for the name of an Astropus species, and two lectotypes for Visenia. These last two lectotypifications supersede previous ones, which misinterpreted and confused the original material. Waltheria erioclada, generally treated as a synonym of W. indica, is considered here to be a distinct species, and W. martii, also generally treated as a synonym of W. indica, is accepted here as the correct name for W. albicans.