A Tooth Fungus (Hydnellum concrescens)
Key Details
| Taxonomic Groups: | Fungus or lichen > fungus > Fungus |
| Red List Status: | (Not Relevant) [(not listed)(nr)] |
| D5 Status: | |
| Section 41 Status: | (not listed) |
| Taxa Included Synonym: | (none) |
| UKSI Recommended Name: | Hydnellum concrescens s. lat. |
| UKSI Recommended Authority: | (not specified) |
| UKSI Recommended Qualifier: | (none specified) |
| Red List Citation: | (not listed) |
| Notes on taxonomy/listing: | (none) |
Criteria
| Question 1: | Does species need conservation or recovery in England? |
| Response: | Yes |
| Justification: | The taxonomy of this species in the UK is still under investigation (or unpublished) |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Taxonomic issues mean there is not enough data relating to current distribution. These need to be resolved so that the species status can be assessed for England |
| 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: | There is no evidence that an increase in the structural diversity of the habitat will directly benefit this species. |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 1. Taxonomy established |
| Recovery potential/expectation: | Low - Policy conflict (detail in comments) |
| National Monitoring Resource: | Combination - insufficient |
| Species Comments: | There is ongoing work to establish the taxonomy of British collections. Any attempts at Species recovery are likely to be hampered by high levels of atmospheric nitrogen deposition, this is a policy conflict due to demands of industry and agriculture. |
Key Actions
Key Action 1
Proposed Action: A programme of targeted, professional surveys should be carried out at any sites with potential historic records of this species. All specimens should undergo morphometric analysis and be sequenced to ascertain the taxonomy of English populations.
Action targets: 1. Taxonomy established
Action type: Scientific research
Duration: 3-5 years
Scale of Implementation: ≤ 50 sites
High priority sites: New Forest
Comments: These surveys will add to the ongoing taxonomic work into this species.
Key Action 2
Proposed Action: An assessment of the necessary national species records should be made according to IUCN guidelines to provide a recognised redlist status criteria for this species.
Action targets: 2. Biological status assessment exists
Action type: Status survey/review
Duration: 1 year
Scale of Implementation: National
High priority sites: N/A
Comments: As no IUCN recognised assessment exists for this species, this action should be prioritised.
Key Action 3
Proposed Action: Research into inoculation of saplings with mycorrhiza of this species
Action targets: 5. Remedial action identified
Action type: Scientific research
Duration: >10 years
Scale of Implementation: National
High priority sites: N/A
Comments: tree inoculation should be trialled. Successful inoculation would allow for rapid colonisation of new sites
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.