Pseudobombax munguba (Mart.) Dugand, Mutisia 9: 4. 1952.

Carvalho-Sobrinho, Jefferson G. & Dorr, Laurence J., 2017, A new combination and taxonomic notes in Pseudobombax Dugand (Malvaceae), PhytoKeys 85, pp. 27-30 : 29

Pseudobombax munguba (Mart.) Dugand, Mutisia 9: 4. 1952.

Basionym. Bombax munguba Mart., Nov. Gen. Sp. Pl. 1: 93, t. 99. 1826. - Type: Brazil. Amazonas: Rio Negro, Martius s.n. (lectotype, designated by Robyns (1963): M! [M0211657, JSTOR image]). = Pseudobombax amapaense A. Robyns, Mem. New York Bot. Gard. 17(1): 195. 1967. - Type: Brazil. Amapá: Rio Jari, near Cachoeira Miriti, 0°41'N, 53°6'W, 180 m, 25 Aug 1961, W. A. Egler & H. S. Irwin 46673 (NY! [NY00133605, NY00133606, NY00133607, JSTOR image]), syn. nov.

Notes.

The characters (tree height and pubescence of staminal tubes) used by Robyns (1967) to segregate P. amapaense do not permit it to be distinguished from P. munguba based on a more comprehensive sampling in the field and in herbarium collections. Previously, phylogenetic analyses of DNA sequences were interpreted as supporting the accessions examined of these two taxa as sister groups ( Carvalho-Sobrinho et al. 2016: fig. 2), but we now consider P. amapaense to be a synonym of P. munguba on the basis of combined morphological and molecular evidence.