Rhizocarpon petraeum

Rhizocarpon petraeum

• Type: Lichen
• Family: Rhizocarpaceae
• Genus: Rhizocarpon
• Species: petraeum
• Habitat: Maritime
• Habitat: Rocks
• Site:Isle of Arran
• Site:Scotland
• Site:UK
• Month:August
• Photographer:RKS