''Pertusaria'' is a large genus of warty crustose lichen, crustose lichens in the Pertusariaceae family.
[Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ] The fruiting bodies are usually modified apothecia that immersed in warts on the main body (thallus) with small holes for the spores to emerge, similar to ostioles, or are fully above and lecanorine (spore bearing discs surrounded by a ring of tissue similar to the tissue of the thallus.
[ Members of the genus are List of common names of lichen genera, commonly called wart lichens.][
The widespread genus contains over 500 species.][
Classification in the large genus relies heavily on thallus chemistry to distinguish and classify species, some of which differ only in the presence or absence of a single secondary metabolite, secondary chemical. Lichexanthone, norlichexanthone, and their chlorinated derivatives are common in this genus.]
Selected species
* ''Pertusaria amara''
* ''Pertusaria californica''
*''Pertusaria diluta''
* ''Pertusaria favicunda''
* ''Pertusaria lactea''
* ''Pertusaria opthalmazia''
* ''Pertusaria rubefacta''
* ''Pertusaria subambigens''
* ''Pertusaria velata''
* ''Pertusaria xanthodes''
References
Pertusaria,
Lichen genera
Pertusariales genera
Taxa named by Augustin Pyramus de Candolle
Taxa described in 1805
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