Bark beaded-rim
EN

Bark beaded-rim

Lecanora cinereofusca

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Lecanora_cinereofusca

Overview

Lecanora cinereofusca is a species of corticolous (bark-dwelling) crustose lichen in the family Lecanoraceae.

Beaded Rim-lichen (Lecanora cinereofusca) is declining primarily due to air pollution and habitat degradation affecting its specialized substrate requirements. Urban development and industrial activities have reduced suitable habitat and altered air quality conditions necessary for this sensitive lichen species.

Threat summary

Habitat

In the United Kingdom, where it is considered very rare, Lecanora cinereofusca grows on birch and willow trees. It was recorded for the first time in the Czech Republic in 2014, although it is considered extinct there as it is known only from a single historical collection from an old-growth beech forest. In the Alps, the lichen has been recorded growing on various hosts: Acer pseudoplatanus,...

TERRESTRIAL· major

Other threatened species in Lecanoraceae

VU

Lecanora soralifera

Unknown
EN

Lecanora vacillans

Unknown
Tarn LecanoraEN

Tarn Lecanora

Protoparmeliopsis achariana

Unknown
EN

Lecanora margacea

Unknown

Frequently asked questions

Why is Bark beaded-rim classified as Endangered?
Bark beaded-rim is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Beaded Rim-lichen (Lecanora cinereofusca) is declining primarily due to air pollution and habitat degradation affecting its specialized substrate requirements. Urban development and industrial activities have reduced suitable habitat and altered air quality conditions necessary for this sensitive lichen species.
Where does Bark beaded-rim live?
Bark beaded-rim occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Bark beaded-rim?
The main threats to Bark beaded-rim are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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