• Proposed
  • Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Arrasia rostrata Bernicchia, Gorjón & Nakasone

Go to another Suggested Species...

Scientific name
Arrasia rostrata
Author
Bernicchia, Gorjón & Nakasone
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Ascomycota
Class
Incertae sedis
Order
Incertae sedis
Family
Incertae sedis
Assessment status
Under Assessment
Proposed by
Claudia Perini
Assessors
Claudia Perini
Comments etc.
Anders Dahlberg, Michael Krikorev

Assessment Notes

Taxonomic notes

Nearly ten years ago this species belonging also to a new genus was described from the Lanaittu valley on the island Sardinia. It’s an unusual small, white and soft corticoid fungus with distinctive large basidiospores developing a characteristic distal refractive rostrum.


Why suggested for a Global Red List Assessment?

This unusual small, white and soft corticoid fungus with distinctive microscopic characteristic was found various times on trunks and old branches of living Juniperus phoenicea in a valley in Sardinia (Italy). Only for a short period it was observed also on Cupressus sempervirens in central Italy (Tuscany). Even if both woody plant species are common in the mediterranean area the fungal species result to be very rare and the extinction risk is very high. Today it is only present at the type collection site. It can be assessed as critically endangered with a very small population size less than 50 mature individuals. Mycologists are invited to look for new findings of Arrasia rostrata!


Geographic range

Nearly ten years ago this species belonging also to a new genus was described from the Lanaittu valley on the island Sardinia (Italy).
Finally years later (2014) it was observed as few small spots also on a living but not with a healthy aspect Cupressus sempervirens in natural cupress forest, Cipresseta di Sant’Agnese (Siena, Italy).


Population and Trends

This species resulted to be limited to Juniperus and to island Sardinia (Italy), finally it was observed on Cupressus sempervirens on the italian penisola (Tuscany), but only for a short time and than dissapared. Even if both woody plant species are common in the mediterranean area the fungal species result to be very rare and the extinction risk is very high.
Today it is only present at the type collection site. It can be assessed as critically endangered with a very small population size less than 50 mature individuals.

Population Trend: Decreasing


Habitat and Ecology

Nearly ten years ago this species belonging also to a new genus was described from the Lanaittu valley on the island Sardinia. It’s an unusual small, white and soft corticoid fungus with distinctive large basidiospores developing a characteristic distal refractive rostrum. In the same locality various observations are made on trunks and old branches of living old Juniperus phoenicea, often observed growing near to Echinodontium ryvardenii. This species resulted to be limited to Juniperus and to Sardinia, finally years later (2014) it was observed as few small spots also on a living but not with a healthy aspect Cupressus sempervirens in central Italy (Tuscany).


Threats

The species seems to be linked principally to old Juniperus phoenicea but also found on on a old ill Cupressus sempervirens.
Even if both woody plant species are common in the mediterranean area the fungal species result to be very rare, disappeared on Cupressus and the extinction risk is very high.


Conservation Actions


Research needed


Use and Trade


Bibliography

BERNICCHIA A., GORJON S.P., NAKASONE K.K., 2011: Arrasia rostrata (Basidiomycetes), a new corticioid genus and species from Italy. Mycotaxon 118: 257-264.
BERNICCHIA A., FACCHINI M., GORJON S.P., 2015: A new collecting area for Arrasia rostrata in Italy. Micol. Veget. Medit., 30 (1): 57-64. 2015.


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted