@misc{indiciae99a62f7ee4b3,
  title = {Descriptive and physiological botany / Descriptive and physiological botany. : [Supplementary material in Charles Darwin's copy] — Illustration, Page 58},
  year = {1837},
  url = {https://www.biodiversitylibrary.org/page/34119576},
  note = {Source identifier: page-34119576}
}