Revisión de Malvaceae subfamilia Bombacoideae: Ceiba, Eriotheca y Pseudobombax en Argentina

Nataly O'Leary; Carolina Miriam Peichoto

doi:10.14522/darwiniana.2025.132.1313

Authors

Nataly O'Leary Facultad de Ciencias Agrarias y Veterinarias, Universidad del Salvador, Champagnat 1599, B1630AHU, Pilar, Buenos Aires, Argentina; Instituto de Botánica Darwinion (ANCEFN-CONICET), Labardén 200, CC 22, B1642HYD, San Isidro, Buenos Aires, Argentina; noleary@darwin.edu.ar (autor corresponsal) https://orcid.org/0000-0001-7414-3416
Carolina Miriam Peichoto Instituto de Botánica del Nordeste, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Corrientes, Argentina. https://orcid.org/0000-0003-0176-1090

DOI:

https://doi.org/10.14522/darwiniana.2025.132.1313

Keywords:

Argentine flora, Bombacoideae, Malvaceae, Southern Cone

Abstract

A taxonomic review of the three genera of Malvaceae subfamily Bombacoideae growing in Argentina is presented. Ceiba is a Neotropical genus, represented by 3 species in Argentina, Eriotheca is a genus from tropical South America, with 1 species in Argentina, and Pseudobombax is a Neotropical genus, represented by 1 species in the territory. A key to the species of each of the genera, complete descriptions of the taxa, a distribution map, illustrations, photographs and a list of examined material are provided. Five lectotypes are designated for Bombax marginatum f. arborea (=Pseudobombax argentinum), Ceiba glaziovii f. transiens (=C. pubiflora), Ceiba pubiflora f. praecox (=C. pubiflora), Chorisia speciosa var. paraguariensis (=C. speciosa), and Tartagalia rubra (=Eriotheca roseorum), and a second step lectotype is established for Eriodendron pubiflorum (≡ Ceiba pubiflora); in turn, Ceiba guarani is proposed as a new synonym for C. chodatii.

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