• Proposed
  • Under Assessment
  • ENPreliminary Assessed
  • 4Assessed
  • 5Published

Entoloma jennyae Noordel. & Cate

Go to another Suggested Species...

Scientific name
Entoloma jennyae
Noordel. & Cate
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Preliminary Assessed
Preliminary Category
Proposed by
Eef Arnolds
Eef Arnolds
Comments etc.
Anders Dahlberg

Assessment Status Notes

Taxonomic notes

The species has originally been described as Entoloma jennyae (orthographic variant).

Why suggested for a Global Red List Assessment?

Entoloma jennyi is a striking agaric with large basidiocarps with a pruinose, blue-grey to violaceous blue pileus of 4-7 cm, pink lamellae and whitish stipe. The surface of the pileus is made up of erect clavate cells, a fundamental difference with somewhat similar species (Noordeloos, 1994). The species has a very limited distribution in Western Europe and is growing in an endangered habitat. Therefore it is proposed for the global Red List. The larger blue species of Entoloma have been studied extensively throughout Europe (Noordeloos, 1992, 2004) and therefore it is unlikely that it is overlooked in large areas. In view of the very small population E. jennyi is proposed for the global Red List as Endangered (D1).

Geographic range

Entoloma jennyi is only known from a few localities in Ireland. Legon & Henrici (2005) mention two localities. It may occur in reality in some as yet unknown localities, with an estimated number of ten localities worldwide.

Population and Trends

Only known from a few localities in Ireland (Noordeloos, 2004). Including undiscovered localities the global population is estimated at a maximum of 10 localities with a maximum number of 200 mature individuals.The trend of the species is unknown, but because a decline of the habitat and habitat quality (see threats) most probably the trend has been decreasing.

Population Trend: Deteriorating

Habitat and Ecology

On wet, peaty soil in Atlantic bogs with Calluna vulgaris, Erica cinerea, Narthecium ossifragum, Potentilla erecta, Polygala vulgaris; probably saprotrophic but life strategy unknown.

Bogs, Marshes, Swamps, Fens, Peatlands [generally over 8 ha]


Entoloma jennyi is threatened by continued digging of peat; drainage and cultivation of bogs and planting of trees in drained bogs.

Mining & quarrying

Conservation Actions

Preservation of localities as nature reserves with maintenance of natural hydrology.

Site/area protection

Research needed

Systematic mapping of appropriate habitats in Ireland (possibly also Wales and Scotland) may reveal more localities of this species.

Population size, distribution & trends

Use and Trade


Noordeloos, M.E. 1992. Entoloma sl. Fungi Europaei 5.
Noordeloos, M.E. 1994. Studies in Entoloma 14. Some new species and new records. Österr. Z. Pilzk. 4: 119-136.
Noordeloos, M.E. 2004. Entoloma sl, supplemento. Fungi Europaei 5a.
Legon, N.W. & A. Henrici. 2005. Checklist of the British and Irish Basidiomycota.

Known distribution - countries

Regional Population and Trends

Country Trend Redlisted