- Scientific name
- Cyttaria exigua
- Author
- Gamundí
- Common names
- Digueñe
- IUCN Specialist Group
- Cup-fungi, Truffles and Allies
- Kingdom
- Fungi
- Phylum
- Ascomycota
- Class
- Leotiomycetes
- Order
- Cyttariales
- Family
- Cyttariaceae
- Assessment status
-
Published
- Assessment date
- 2020-04-03
- IUCN Red List Category
-
LC
- Assessors
- Calle, A., Drechsler-Santos, E.R., Kossmann, T., Mardones Hidalgo, M., da Cunha, K.M., Pfister, D., Sandoval-Leiva, P., Sanjuan, T., Torres, D. & Vasco-Palacios, A.M.
- Reviewers
- Minter, D.
Assessment Notes
Justification
Cytarria exigua is an obligate parasite of
Nothofagus dombeyi and
N. betuloides in southern Argentina and Chile. Its population is stable. It is considered to be Least Concern.
Geographic range
This species occur in
Nothofagus forests in Chile and Argentina. Highest recorded altitude: 790 m. The first record in Chile was in Renell island growing on
Nothofagus betuloides in a mixed
Nothofagus forest. It has been recordered in the Aysén, Magallanes y la Antártica Chilena and Los Lagos Regions. In Argentina there are records from Neuquén, Río Negro and Tierra del Fuego provinces. The record from Tierra del Fuego was very near the border with Chile, so it likely occurs in the Chilean Tierra del Fuego sector.
Population and Trends
This species is much less conspicuous than other members of the genus and tends to be overlooked. Its habitat is stable.
Population Trend: stable
Habitat and Ecology
The species is an obligate parasite growing on branches of
Nothofagus spp. This fungus does not cause wood decay. It is found on
Nothofagus dombeyi and
N. betuloides.
Threats
The species has a restricted distribution and is an obligated parasite of several species of
Nothofagus. Its host are classified as Least Concern (IUCN 2020).
Conservation Actions
Protection of the host species would be beneficial.
Use and Trade
Cyttaria species' common name is “Digueñe”. Even though there is a well establish market for Digueñe consumption, there are no records of people eating
Cyttaria exigua, specifically.
Source and Citation
Calle, A., Drechsler-Santos, E.R., Kossmann, T., Mardones Hidalgo, M., da Cunha, K.M., Pfister, D., Sandoval-Leiva, P., Sanjuan, T., Torres, D. & Vasco-Palacios, A.M. 2020. Cyttaria exigua. The IUCN Red List of Threatened Species 2020: e.T58517895A58517903.
https://dx.doi.org/10.2305/IUCN.UK.2020-2.RLTS.T58517895A58517903.en .Accessed on 2 February 2024