- Scientific name
- Spiniger curiosus
- Author
- (Parmasto & Žukov) Stalpers
- Common names
-
- IUCN Specialist Group
Mushroom, Bracket and Puffball
- Kingdom
- Fungi
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Russulales
- Family
- Bondarzewiaceae
- Assessment status
-
Published
- Assessment date
- 2023-02-01
- IUCN Red List Category
-
DD
- Assessors
- Susana C. Gonçalves; Susana Cunha (RBG Kew and University of Coimbrta, Portugal)
- Reviewers
- Gregory Mueller (Chicago Botanic Garden / IUCN SSC Mushroom, Bracket and Puffball Specialist Group)
Assessment Notes
Justification
Spiniger curiosus has only been documented in the original description of the species in 1969, under the name
Paullicorticium curiosum and has not been recorded since. It potentially represents the asexual form of another species.
Mutatoderma pupulneum has been suggested but this has not yet been confirmed. A taxonomic review of this taxon is needed and the species is assessed as Data Deficient (DD).
Taxonomic notes
Spiniger curiosus is a currently accepted name in Species Fungorum (2023) and only remaining specie in the genus. However, Donk (1971) concluded it was the conidial state of a
Hyphoderma species, possibly
Hyphoderma populneum (now
Mutatoderma pupulneum).
Geographic range
This species was recorded from Siberia (Parmasto 1969).
Population and Trends
This species has only been documented in its original description (under the name Paullicorticium curiosum). It is not possible to estimate the population size.
Population Trend: Unknown
Habitat and Ecology
It was found growing on
Populus tremula fallen wood.
Threats
This species' threats are unknown.
Conservation Actions
Given that
Spiniger curiosus potentially corresponds to an asexual form of another species, a review of its taxonomic placement is needed.
Source and Citation
Cunha, S.P. & Gonçalves, S.C. 2025. Spiniger curiosus. The IUCN Red List of Threatened Species 2025: e.T265983885A266020709. Accessed on 22 November 2025.