| Common Name |
Salted Shield Lichen, Crottle |
| Family |
Parmeliaceae |
| Genus |
Parmelia |
| Species |
saxatilis |
| Authority |
|
| Synonyms |
Parmotrema saxatalis; Parmotrema saxatile; Imbricaria saxatalis; Geissodea saxatalis |
| 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. |
| Location Found |
Pukaskwa National Park |
| Growth Structure |
Foliose |
| 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. |
| References |
Brodo et al, 2001.; International Mycological Association, 2016.; Newmaster & Ragupathy, 2012.; Will-Wolf et al, 2015. |
