Oil-Stain Parmentaria (Pyrenula hibernica)
Key Details
| Taxonomic Groups: | Fungus or lichen > lichen > Lichen |
| Red List Status: | Vulnerable (Not Relevant) [VU(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: | Pyrenula hibernica |
| UKSI Recommended Authority: | (Nyl.) Aptroot |
| 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: | Only known, currently, from 1 site in England, with a very small population on a small number of trees. V rare in GB and globally. |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Very small localised population at one site. Whilst habitat management is crucial, monitoring and survey is important, and other targeted interventions may be required. |
| 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: | No |
| Justification: | This species would not benefit from untargeted management |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 2. Biological status assessment exists |
| Recovery potential/expectation: | Low - Relict or natural rarity |
| National Monitoring Resource: | Opportunistic - insufficient |
| Species Comments: | Recently discovered in Cumbria - only English site. |
Key Actions
Key Action 1
Proposed Action: Review of current site habitat management, assessment of threat, and identify actions as required.
Action targets: 5. Remedial action identified
Action type: Other (specify in comments)
Duration: 1 year
Scale of Implementation: 1 site
High priority sites: Seatoller
Comments: Need to establish threats and remedial action if required e.g. lack of grazing is a threat in Wales.
Key Action 2
Proposed Action: Advise on sustainable management of the Atlantic Hazel stands at Seatoller, Borrowdale Lake District (this species is epiphytic on hazel).
Action targets: 6. Recovery solutions trialled
Action type: Advice & support
Duration: 1 year
Scale of Implementation: 1 site
High priority sites: Seatoller, Borrowdale
Comments: The habitat appears somewhat under grazed for Atlantic Hazel wood conservation, but there is pressure to reduce grazing further. The conflicting assessments require resolving.
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.