Medeiros D., L. Senna-Valle, and R. J. V. Alves (Universidade Federal do Rio de Janeiro, Museu Nacional, Department of Botany, Quinta da Boa Vista s.n., Bairro Imperial de São Cristóvão, Rio de Janeiro, 20.940-040, Brazil). Validation of the names Croton lenheirensis and Croton pradensis (Euphorbiaceae). J. Torrey Bot. Soc. 139: 345–346. 2012.— The species Croton lenheirensis D. Medeiros, Senna-Valle & Alves and Croton pradensis D. Medeiros, Senna-Valle & Alves from Brazil were published invalidly in 2009, not specifically designating in which herbarium the respective holotypes were deposited. This oversight is corrected with the validation of the specific names; the holotypes are deposited in R.