Lima, Liliane Ferreira, Patrícia Barbosa Lima, Eduardo Bezerra de Almeida Jr., and Carmen Silvia Zickel. 2010. “Morphology of Fruits, Seeds and Seedlings Guettarda Platypoda DC. (Rubiaceae)”. Biota Neotropica 10 (1). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/611.