Arthonia anglica
Key Details
| Taxonomic Groups: | Fungus or lichen > lichen > Lichen |
| Red List Status: | Endangered (Not Relevant) [EN(nr)] |
| D5 Status: | Included in the baseline Red List Index for England (Wilkins, Wilson & Brown, 2022) |
| Section 41 Status: | (not listed) |
| Taxa Included Synonym: | (none) |
| UKSI Recommended Name: | Arthonia anglica |
| UKSI Recommended Authority: | Coppins |
| UKSI Recommended Qualifier: | (none specified) |
| Red List Citation: | Woods & Coppins, 2012 |
| Notes on taxonomy/listing: | (none) |
Criteria
| Question 1: | Does species need conservation or recovery in England? |
| Response: | Yes |
| Justification: | Very small population known c15 trees and lost form several sites recently due to woodland under grazing, being reassessed as CR |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Extant populations are very small and require bespoke management and advice. Apparent loss form several sites due to under grazing, requiring management planning and restoration to former sites. |
| Question 3: | At a landscape scale, would the species benefit from untargeted habitat management to increase habitat mosaics, structural diversity, or particular successional stages? |
| Response: | Yes |
| Justification: | Part of a large group of species threatened by under grazing of old growth woodlands |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 4. Autecology and pressures understood |
| Recovery potential/expectation: | Medium-high |
| National Monitoring Resource: | Opportunistic - insufficient |
| Species Comments: | Species dossier written, losses found due to undergrazing in Millook (Cornwall) and Clovelly to Peppercombe (Devon), sustainable if small populations in the New Forest and the Dizzard (Cornwall). |
Key Actions
Key Action 1
Proposed Action: Targeted survey for this species at Clovelly deer park and adjacent cliff.
Action targets: 3. National Monitoring Plan agreed and implemented
Action type: Targeted monitoring
Duration: 1 year
Scale of Implementation: 1 site
High priority sites: Clovelly deer park and cliffs
Comments:
Key Action 2
Proposed Action: Targeted habitat management to reverse increasing shade by thinning, supported by a managed and sustainable grazing/browsing regime.
Action targets: 5. Remedial action identified
Action type: Habitat management
Duration: >10 years
Scale of Implementation: 1 site
High priority sites: Clovelly - Peppercombe
Comments: This action is identified in Sanderson 2020 Porina effilata & Arthonia anglica Clovelly to Peppercombe North Devon & Arthonia anglica in the New Forest Hampshire 2020
Key Action 3
Proposed Action: Survey coastal (or near coastal) woodlands in North Devon and North Cornwall between Peppercombe and Dizzard for the species
Action targets: 3. National Monitoring Plan agreed and implemented
Action type: Targeted monitoring
Duration: 3-5 years
Scale of Implementation: ≤ 50 sites
High priority sites:
Comments: With reference to 19thC maps there are many former open woodland sites in the valleys between Hartland Point and the Dizzard, with similar structure and aspect to the Clovelly coast and the Dizzard e.g. Marsland, Welcome, Hartland. These would be well worth surveying for this species (and others).
Acknowledgment:
Data used on this website are adapted from Threatened species recovery actions 2025 baseline (JP065): Technical report and spreadsheet user guide (Natural England, 2025). Available here.