@article{shimai_kondo_2007, 
  title={Phylogenetic analysis of Mexican and Central American Pinguicula (Lentibulariaceae) based on internal transcribed spacer (ITS) sequence}, 
  DOI={10.3199/iscb.2.67}, 
  publisher={International Society of Chromosome Botany}, 
  author={Shimai and Kondo}, 
  year={2007}
  }