@article{articlef44afc72,
title   = {Leaf ultrastructure in species of Gomphrena and Pfaffia (Amaranthaceae)},
author = {Estelita, Maria Emilia Maranhão and Handro, Walter},
year = {1984},
doi = {10.1139/b84-118},
journal   = {Canadian Journal of Botany}
}