@misc{indiciaec281bf72338c,
  title = {Botany. Cryptogamia. Filices, including Lycopodiaceae and Hydropterides / United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 — Illustration, Filices. PL. 18},
  year = {1854},
  url = {https://www.biodiversitylibrary.org/page/43553654},
  note = {Source identifier: page-43553654}
}