Matias, L. Q., & Soares, G. (2009). Morphology and micromorphology of the seed coats of species of Echinodorus (Alismataceae) from Brazilian Northeastern. Boletim Do Museu Paraense Emílio Goeldi - Ciências Naturais, 4(2), 165-173. https://doi.org/10.46357/bcnaturais.v4i2.663