Parmelia saxatilis (L.) Ach.

Salted Shield Lichen (Parmelia saxatilis)

Parmelia saxatilis, commonly known as the salted shield lichen or crottle, is a species of foliose lichen in the family Parmeliaceae. Several morphologically similar species, formerly lumped together, are now distinguished by their DNA.

Source: Wikipedia

Synonyms 16

Geissodea saxatilis, Imbricaria saxatilis, Lichen saxatilis, Parmotrema saxatile, Platisma saxatile, Platysma saxatile, Imbricaria saxatilis var. aizonii, Lichen laciniatus var. saxatilis, Parmelia saxatilis var. aizonii, Parmelia saxatilis var. furfuracea, Parmotrema saxatile var. aizoni, Imbricaria saxatilis f. aizonii, Imbricaria saxatilis f. furfuracea, Parmelia quercina f. furfuracea, Parmelia saxatilis f. aizonii, Parmelia saxatilis f. furfuracea

59,120 GBIF occurrences
5,752 iNaturalist observations

Conservation status code

Conservation: status label

Least Concern

Conservation: population trend

Stable

Conservation: year assessed

2021

IUCN Red List page

https://www.iucnredlist.org/species/194660573/194678129

Habitats

Threats

IUCN: population narrative

Parmelia saxatilis is one of the most common lichens in temperate and boreal habitats, and occurs in a wide range of settings (Molina et al. 2004). Even with the recently-recognized segregate species, recent molecular work has shown that P. saxatilis in the strict sense is found from pole to pole (Crespo et al. 2002, 2020). We infer the population size to be stable.

IUCN: habitat narrative

This species is abundant on trees and rocks (Brodo et al. 2001, Corsie et al. 2019) in a wide range of habitats across temperate and boreal biomes.

IUCN: threats narrative

This species may be sensitive to high pollution loads (Geiser and Neitlich 2007).

IUCN: rationale

Parmelia saxatilis is common and abundant in many forests, heaths, and uplands outside the tropics and does not qualify for any threat categories. It is, therefore, listed as Least Concern.

Parmelia saxatilis (L.) Ach.

Related species

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