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Bryoclavula phycophila H. Masumoto & Y. Degawa

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Scientific name
Bryoclavula phycophila
Author
H. Masumoto & Y. Degawa
Common names
 
IUCN Specialist Group
Lichens
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Cantharellales
Family
Incertae sedis
Assessment status
Published
Assessment date
2023-02-06
IUCN Red List Category
DD
Assessors
Susana C. Gonçalves; Susana Cunha (RBG Kew and University of Coimbrta, Portugal)
Reviewers
Christoph Scheidegger (IUCN SSC Lichen Specialist Group)

Assessment Notes

The content on this page is fetched from The IUCN Red List of Threatened Species: https://www.iucnredlist.org/species/265976049/266018322

Justification

Bryoclavula phycophila is a lichenized basidiomycete described from Japan in 2020, where it has been found in two locations. More records or search efforts are needed to determine the population size and distribution. The species is assessed as Data Deficient (DD).

Taxonomic notes

Bryoclavula phycophila is the type species of the monotypic genus Bryoclavula, described in 2020 using morphological and phylogenetic data (Masumoto and Degawa 2020).

Geographic range

This species is known from the Kumamoto and Nagano (not mapped) Prefectures in Japan (Masumoto and Degawa 2020, 2021).

Population and Trends

Bryoclavula phycophila has only been found in two sites in Japan. It is possible that its small size (less than 5mm) and possible confusion with other species (e.g in the genus Multiclavula) has limited the number of observations for this species, making it difficult to determine whether this species is uncommon or overlooked.

Population Trend: Unknown


Habitat and Ecology

Bryoclavula phycophila is a lichenized fungus, growing in association with green algae. I has been found on bryophyte covered rocks in a canyon boardwalk side slope and growing directly from a stone on an unpaved forest road, in winter and autumn respectively (reported by Dr. Masumoto).

Threats

This species' threats are unknown.

Conservation Actions

Targeted search efforts are needed to estimate the population size and distribution.

Source and Citation

Cunha, S.P. & Gonçalves, S.C. 2025. Bryoclavula phycophila. The IUCN Red List of Threatened Species 2025: e.T265976049A266018322. Accessed on 22 November 2025.

Country occurrence