Carvalho-Sobrinho, J. G. de, L. Ramella, L. P. de Queiroz & L. J. DORR (2014). Towards a revision of Pseudobombax Dugand (Malvaceae-Bombacoideae) : typification of names published by E. Hassler and R. Chodat in the related genus Bombax L. Candollea 69: 93–99. In English, English abstract.
To facilitate an ongoing taxonomic revision of Pseudobombax Dugand as part of studies on the systematics of Neotropical Bombacoideae (Malvaceae), we clarify the typification of 16 names in Bombacoideae that were published by Emil Hassler and Robert Chodat based mostly on specimens collected by Hassler in Paraguay and collected by Robert Fries and Gustaf Malme in Argentina and Brazil. We designate 4 lectotypes for the following names: Bombax elegans R. E. Fr., Bombax longiflorum var. emarginatum Hassl., Bombax marginatum subsp. meridionale Hassl., Bombax marginatum var. praecox Hassl. An epitype is designated for Bombax elegans R. E. Fr. In addition, we narrow down André Robyns' lectotypification of Bombax marginatum f. arboreum Chodat to a single specimen.