- Scientific name
- Squamanita pearsonii
- Common names
- Strathy Strangler
- IUCN Specialist Group
- Mushroom, Bracket and Puffball
- Assessment status
- Assessment date
- IUCN Red List Category
- Griffith, G.
- Gonçalves, S.C., Brandrud, T.-E. & Saar, I.
is one of the rarer members of genus Squamanita
, known from only 12 localities globally. In Europe it has been recorded less than 10 times, and even less in North America, but it is reported from both coasts there. The species is parasitic on the fungus Cystoderma amianthinum
which is widespread and common and not declining. The number of unknown localities is difficult to estimate and could be much higher than the current available records, but the total population size is estimated to be greater than 2,000 mature individuals. This species is thus assessed as Least Concern, research on its distribution and population size is recommended.
is endemic to temperate habitats in the northern hemisphere.
Population and Trends
Squamanita pearsonii is globally rare, though seen in Europe with slightly more frequency than in North America. Its host Cystoderma amianthinum is widespread and common, with no evidence of decline. Relative to S. paradoxa that also parasites the same host, it is much rarer, it has been recorded only 7 times (vs 176 records in Europe for S. paradoxa). Globally only known from 12 localities in spite of an increase survey effort in grasslands.
The number of unknown localities is difficult to estimate and could be much higher than the current available records, but the total population size is estimated to be greater than 2,000 mature individuals (Dahlberg and Mueller 2011).
Population Trend: unknown
Habitat and Ecology
is a biotrophic parasite of the saprotrophic fungus Cystoderma amianthinum
. It is mostly found in mossy grassland and coniferous forest.
The species populations occurring in grasslands might be threatened due to intensification of agriculture or abandonment of these lands.
Research on the species distribution and population is recommended.
Use and Trade
The species is not known to be used.
Source and Citation
Griffith, G. 2019. Squamanita pearsonii. The IUCN Red List of Threatened Species 2019: e.T147534726A148204367. https://dx.doi.org/10.2305/IUCN.UK.2019-2.RLTS.T147534726A148204367.en
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