@article{PastoreAntar2021,
  author    = {Jos{\´e} Floriano Bar{\^e}a Pastore and Guilherme Medeiros Antar},
  title     = {Two new endangered species of Polygala series Trichospermae (Polygalaceae), endemic to the Cerrado domain, Tocantins State, Brazil},
  journal   = {European journal of taxonomy},
  volume    = {2021},
  number    = {762},
  pages     = {133 -- 148},
  doi       = {10.5852/ejt.2021.762.1459},
  year      = {2021},
}