@article{langenheim_lee_martin_1973,  title={An evolutionary and ecological perspective of Amazonian Hylaea species of Hymeneae (Leguminosae: Caesalpinioideae)},  volume={3},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921973031005},  DOI={10.1590/1809-43921973031005},  number={1},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Langenheim, Jean H. and Lee, Yin-Tse and Martin, Susan S.},  year={1973},  month={Apr},  pages={5–38} }