- 1Proposed
- 2Under Assessment
- 3Preliminary Assessed
- 4Assessed
- 5Published
Siphula dactyliza Nyl.
- Scientific name
- Siphula dactyliza
- Author
- Nyl.
- Common names
- IUCN Specialist Group
Lichens- Kingdom
- Fungi
- Phylum
- Ascomycota
- Class
- Lecanoromycetes
- Order
- Pertusariales
- Family
- Icmadophilaceae
- Assessment status
- Dormant
- Proposed by
- Toby Spribille
- Assessors
- Toby Spribille
- Comments etc.
- Anders Dahlberg
Assessment 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 However, its treatment by Kantvilas (2002) as a species of Stereocaulon is in error (Spribille, unpublished data).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.
