• 1Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Siphula dactyliza Nyl.

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Scientific name
Siphula dactyliza
Author
Nyl.
Common names
 
IUCN Specialist Group
Lichens
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Pertusariales
Family
Icmadophilaceae
Assessment status
Pending
Proposed by
Toby Spribille
Assessors
Toby Spribille
Comments etc.
Anders Dahlberg

Assessment Status Notes

Taxonomic notes


Why suggested for a Global Red List Assessment?

Siphula dactyliza is known from only a handful of old records from two islands in the Bering Sea. Its overall global population size may be no more than three localities. Military activity on these islands as well as climate change leave the status of these populations in question.


Geographic range

Known from St. Paul and St. Lawrence Islands in the Bering Sea, Alaska


Population and Trends

Population Trend: Uncertain


Habitat and Ecology

Sea cliffs, on rock


Threats


Conservation Actions


Research needed

New population assessments need to be undertaken. In addition, molecular work on the classification of the species is required. It is not known to produce apothecia and thus its higher level taxonomic assignment is unclear. However, its treatment by Kantvilas (2002) as a species of Stereocaulon is in error (Spribille, unpublished data).


Use and Trade


Bibliography

Degelius, G. (1937) Lichens from southern Alaska and the Aleuthian Islands, collected by Dr. E. Hultén. - Meddel. Göteborgs Bot. Trädgard 12: 105-144

Kantvilas, G.  (2002)  Studies on the lichen genus Siphula Fr, pp. 37-53.  In X. Llimona, H. T. Lumbsch & S. Ott (eds.), Progress and Problems in Lichenology at the Turn of the Millenium.  Bibliotheca Lichenologica 82.  J. Cramer, Berlin, Stuttgart.


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted