@article{jacobi_del sarto_2007,  title={Pollination of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands, Brazil},  volume={21},  ISSN={0102-3306},  url={https://doi.org/10.1590/S0102-33062007000200007},  DOI={10.1590/S0102-33062007000200007},  number={2},  journal={Acta Botanica Brasilica},  publisher={Sociedade Botânica do Brasil},  author={Jacobi, Claudia Maria and del Sarto, Mário César Laboissiérè},  year={2007},  month={Apr},  pages={325–333} }