Arctic Oakmoss Lichen

Evernia perfragilis

General Status Rank: 
Secure
Common Name: 
Arctic Oakmoss Lichen
Scientific Name: 
Evernia perfragilis
Naming References: 
B010
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Taxonomy
Group: 
Lichen
Kingdom: 
Fungi
Phylum: 
Ascomycota
Class: 
Lecanoromycetes
Order: 
Lecanorales
Family: 
Parmeliaceae
References: 
B013
Habitat
On calcareous soils and gravels. 5 Cape Bathurst specimens on (1) turfy rise above shoreline, (2) turfy hummock cliff bank above river, (3) muddy tundra embankment above shoreline, (4) well-vegetated muddy embankment, and (5) graminoid-dominated Dryas tundra.
References: 
B010
Distribution

Ecozones

Arctic Cordillera, Northern Arctic, Southern Arctic, Taiga Cordillera, Taiga Plains
References: 
B010

Distribution

0.443 (~44% of the NWT).
Score: 
Categ
References: 
B010

Number of Occurrences

18 (B010); Localities given in Ahti et al. 1973 (Lichens of the Reindeer Preserve, Northwest Territories, Canada, The Bryologist 76: 48-76): 3 (R196); Thomson 1984 maps: 21 (R196); Thomson & Scotter 1995: 1 (R196). Five specimens from Cape Bathurst, collected by P. Sokoloff between August 12 and August 16, 2022, common, scattered, uncommon, or locally common at sites.
Score: 
BE (6
References: 
B010
R196

Area of Occupancy

5 Cape Bathurst specimens from August 2022 at (1) ~3.8km northwest of Mamen Lake on coast of small bay, (2) banks over river on east side of Cape ~4km east of Mamen Lake, (3) Baillie Island, west bank of bay on west side of island, (4) Cape Bathurst, head of Cy Peck Inlet, and (5) Cape Bathurst, north bank of lagoon on east side of Cape, ~8km east of Mamen Lake.
Score: 
-
Threats

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
Secure
Status Rank Description: 
-
S Rank: 
S4S5
Decision Process Description: 
Marsh GS rankings (2010). Reviewed by Janet Marsh in 2015, no change.
Last Updated: 
February 7, 2024

References

Ecozones

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return

Habitat

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return

Naming

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return

Number of Occurrences

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return
  • Goward, T. and Bjork, C. (2010) Macrolichens of the Northwest Territories: current status and future research. Unpublished report to the GNWT 15 pp plus app. Printed in binder - R196 Return

Range Extent

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return

Taxonomy

  • Hale ME (1979) How to Know the Lichens. Wm. C. Brown Company Publishers 2nd Edition RWED Library Call #QK583.H3 - B013 Return