@misc{indiciae1e6b2b78cc59,
  title = {The flora of the Cheyenne sandstone of Kansas},
  author = {E. W. Berry},
  year = {1922},
  doi = {10.3133/pp129i},
  url = {https://pubs.usgs.gov/publication/pp129I},
  note = {Source identifier: pp129I}
}