Rinodina colobina
Local name: allékrimmerlav
Rinodina colobina is a species of corticolous (bark-dwelling) crustose lichen in the family Physciaceae. It has a dark grey, granular appearance and typically grows on nutrient-rich bark of deciduous trees, including elm, maple, and oak.
30
Countries
Photo: iNaturalist: (c) haarala, some rights reserved (CC BY-NC)
Taxonomy & Classification
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Caliciales
Family
Physciaceae
Genus
Rinodina
Rinodina colobina belongs to the family Physciaceae, order Caliciales, within the Lecanoromycetes class.
Species Profile
Rinodina colobina is a species of corticolous (bark-dwelling) crustose lichen in the family Physciaceae. It has a dark grey, granular appearance and typically grows on nutrient-rich bark of deciduous trees, including elm, maple, and oak. The lichen is characterised by small black reproductive structures (apothecia) surrounded by a grey margin. It is widely distributed across Europe and North America, favouring areas with consistently high humidity levels.
Rinodina colobina, a crustose lichen species, faces severe decline primarily due to air pollution and habitat degradation in its specialized coastal environments. The species is particularly vulnerable to sulfur dioxide emissions and other atmospheric pollutants that directly impact lichen physiology, combined with coastal development pressures that destroy its substrate habitats.
Key Facts
Habitat & Distribution
Rinodina colobina typically grows as an epiphyte, primarily on the bark of trees (corticolous). It prefers nutrient-rich or eutrophic bark, particularly that of deciduous trees, although it occasionally colonises wood or lignin substrates. Its most common host trees include species of elm (Ulmus), poplar (Populus), maple (Acer), ash (Fraxinus), and oak (Quercus). In Greece, it can use Melia...
Threats
IUCN Red List: Endangered
Rinodina colobina, a crustose lichen species, faces severe decline primarily due to air pollution and habitat degradation in its specialized coastal environments. The species is particularly vulnerable to sulfur dioxide emissions and other atmospheric pollutants that directly impact lichen physiology, combined with coastal development pressures that destroy its substrate habitats.
Air pollution and acid deposition
Coastal development and urbanization
Climate change and sea level rise
Substrate degradation and quarrying
Tourism and recreational disturbance
Found in 30 Countries
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Rinodina colobina (Rinodina colobina). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/allekrimmerlav