@misc{indiciae973a8a9c84d9,
  title = {The elements of structural botany with special reference to the study of Canadian plants, to which is added a selection of examination papers — Illustration, BHL page 31921953},
  year = {1889},
  url = {https://www.biodiversitylibrary.org/page/31921953},
  note = {Source identifier: page-31921953}
}