Towards a revision of Pseudobombax Dugand (Malvaceae- Bombacoideae): typification of names published by E. Hassler and R. Chodat in the related genus Bombax L. Author de Carvalho-Sobrinho, Jefferson G. Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Universitária s / n, Novo Horizonte, 44036 - 900, Feira de Santana, Bahia, Brazil jef.sobrinho@gmail.com Author Ramella, Lorenzo Conservatoire et Jardin botaniques de la Ville de Genève, case postale 60, 1292 Chambésy, Switzerland. Author de Queiroz, Luciano P. Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Universitária s / n, Novo Horizonte, 44036 - 900, Feira de Santana, Bahia, Brazil Author Dorr, Laurence J. Department of Botany, Smithsonian Institution, Washington, D. C. 20013 - 7012, U. S. A. text Candollea 2014 2014-07-01 69 1 93 99 journal article 3380 10.15553/c2014v691a12 d75cdcea-4b81-4b1f-ada5-69135a4d7b98 2235-3658 5706297 6. Bombax marginatum f. apaense Hassl. in Repert. Spec. Nov. Regni Veg. 8: 70. 1910 . Holotypus : PARAGUAY . Concepción : “In dumetis prope Rio Apa”, V.1885 -1895, Hassler, E . 410 ( G [ G00307102 ]! [lf, fl]) . Isotypi : ( G [ G00307100 ]! [fl], G [ G00307101 ]! [fl], K ! [fl], NY [ NY00133529 ]! [fl], NY [ NY00133530 ]! [fl], P [ P06622878 ]! [fl], P [ P06622882 ]! [fl]) . The specimen [G00307102] has not been annotated as form apaense by Hassler, but it is the only one with leaf and flowers and thus the only specimen matching the protologue. The specimen [G00307101] was annotated by Hassler but it does not include any leaf material. The form apaense is included in B. marginatum var. arboreum (Chodat) Hassl. and Hassler 410 is also the lectotype of its basionym B. marginatum f. arboreum Chodat.