Parmelia saxatilis

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Common Name

Salted Shield Lichen, Crottle

Family

Parmeliaceae

Genus

Parmelia

Species

saxatilis

Synonyms

Parmotrema saxatalis; Parmotrema saxatile; Imbricaria saxatalis; Geissodea saxatalis

Location Found

Pukaskwa National Park

Growth Structure

Foliose

Habitat

Commonly found on rocks in either exposed or shaded habitats; rarely on bark or wood.

Environmental Monitoring

It is generally a pollution sensitive lichen and is sensitive to fertilizng nitrogen. It is an indicator species for flouride in the environment.

Lab Storage

Comments

This lichen was traditionally gathered in Hebrides of Scotland as a source of boiling water dyes. It was also used as a medicinal tead in southern California, India and China.

References

Brodo et al, 2001.; International Mycological Association, 2016.; Newmaster & Ragupathy, 2012.; Will-Wolf et al, 2015.