@misc{indiciae71a1de4ce987,
  title = {Local richness along gradients in the Siskiyou herb flora: R. H. Whittaker revisited},
  author = {James B. Grace and Susan Harrison and Ellen Ingman Damschen},
  year = {2011},
  doi = {10.1890/09-2137.1},
  url = {https://pubs.usgs.gov/publication/70003897},
  note = {Source identifier: 70003897}
}