Dust lichens are lichens in either the genus Chrysothrix or genus Lepraria.[1][2][3][4]: 305 

References

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  1. ^ USDA Natural Resources Conservation Service Name Search
  2. ^ Dust Lichen (Chrysothrix), Encyclopedia of Life
  3. ^ Dust Lichen (Lepraria), Encyclopedia of Life
  4. ^ Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2