Microscopic Characterization of Croton cordiifolius Baill. (Euphorbiaceae), Alves, Iasmine Andreza Ba, Sá Rafaela Damasceno, Cadena Marília Barbosa, Ximenes Rafael Matos, and Randau Karina Perrelli , Pharmacognosy Journal, April 2017 , Volume 9, Issue 3, p.361-366, (2017)