- Proposed
- Under Assessment
- Preliminary Assessed
- Assessed
- ENPublished
Entoloma eugenei Noordel. & O.V. Morozova
- Scientific name
- Entoloma eugenei
- Author
- Noordel. & O.V. Morozova
- Common names
- IUCN Specialist Group
Mushroom, Bracket and Puffball- Kingdom
- Fungi
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Agaricales
- Family
- Entolomataceae
- Assessment status
- Published
- Assessment date
- 2019-03-29
- IUCN Red List Category
- EN
- IUCN Red List Criteria
- C2a(i)
- Assessors
- Morozova, O. & Svetasheva, T.
- Reviewers
- Brandrud, T.-E. & Krisai-Greilhuber, I.
Assessment Notes
Justification
Entoloma eugenei is a recently described, very rare saprothropic fungus growing on soil and litter in temperate broadleaved forests in Eastern Asia. It forms large and easy recognizable fruit bodies due to beautiful intensive blue colour of a cap and stem contrasting with white lamellae, therefore it could be hardly overlooked during mycological forays. However, it has only been found in seven small localities of three countries: Russia, Japan and South Korea. The current situation with timber harvesting in Asian countries is quite dramatic, so the suitable habitats for this species are declining.From the available suitable habitat, the species is thought to be possibly present at a maximum of 100 localities, which correlate with 2,000 mature individuals. The number of mature individuals in each subpopulation is assumed to be below 250. With a continuing decline on its habitat quality and extension caused by the severe deforestation currently taking place, the species is assessed as EN C2a(i).
Geographic range
Entoloma eugenei is an East Asian species, known from the region of the Russian Far East - Primorsky Krai, “Kedrovaya Pad” Nature Reserve. It is also found in Japan (confirmed by sequence; under the name Entoloma aff. kujuense, Morozova et al. 2014) and South Korea (Kim et al. 2015).Population and Trends
In the Russian Far East it was found several times during the period 2005-2011 in five localities (partly identified as E. nitidum) situated in the floodplain forests along the Kedrovaya river and the Ananievka river. The area of occurrence in Russia is about 80-120 km2. Only one locality is known in Japan and one in Korea (Kim et al. 2015).
This species could be present in the other close areas in the southern part of the Russian Far East. Inside the Kedrovaya Pad Nature Reserve the population can be considered quite stable. However, in the Russian Far East forest sector there is a massive timber harvesting (Teplyakov 2011, Smimov et al. 2013, Feditchkina and Lankin 2016, Flintoff 2013, Spivak 2018, Eremenko 2014, Conner 2013). Also in South Korea there are evidence of deforestation in montane deciduous forest (Allison 2016).
Therefore the current trends of species population in general is considered to be declining, but this needs to be assessed more precisely. It is possible to assume that we have a small and declining population with a total number of localities including unknown possible habitats about 70-100, and number of mature individuals 1,400-2,000 (70х2х10) (Dahlberg and Mueller 2011).
Population Trend: decreasing
Habitat and Ecology
Entoloma eugenei is a saprothropic species growing on soil and litter in broadleaved forests.In the Russian Far East Entoloma eugenei was collected in floodplain forests along the Kedrovka river and the Ananievka river. Usually these forests are poly-dominant communities containing many tree species: Quercus mongolica, Tilia amurensis, T. mandshurica, Fraxinus rhynchophylla, Acer mono, Betula dahurica, B. lutea, Ulmus laciniata, U. japonica, Alnus hirsuta, Populus maximowiczii, Salix schwerinii and S. gracilistyla.
In South Korea it was found in mountain woodland at 1,242 m elevation (Kim et al. 2015). The habitat was poorly described as “Humus in woodland”. There are no any data on ecology of finds from Japan.
All the records from Russia are from a nature reserve; in Korea also apparently from little disturbed forest from mountain area. The habitat is thus likely to be a well-developed woodland little disturbed by man.
