Research Article
Pharmacognostical Comparison of Three Species of Himatanthus
Jose Luiz Pinto Ferreira,
Ana Claudia Fernandes Amaral,
Renata Bastos de Araujo,
Junior Ribeiro Carvalho,
Carolyn Elinore Barnes Proenca,
Sandra Aparecida Padilha Magalhaes Fraga and Jefferson Rocha de Andrade Silva