Arctic Butterfingers Lichen

Dactylina arctica

General Status Rank: 
Secure
Common Name: 
Arctic Butterfingers Lichen
Scientific Name: 
Dactylina arctica
Naming References: 
B010
B121
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Taxonomy
Group: 
Lichen
Kingdom: 
Fungi
Phylum: 
Ascomycota
Class: 
Lecanoromycetes
Order: 
Lecanorales
Family: 
Parmeliaceae
References: 
B013
Habitat
Prefers moist habitats among arctic heather, but grows in dry tundras, also in mossy tundra especially associated with late snowbanks. Cape Bathurst specimen (August 2022) found on wet, hummocky tundra.
References: 
B010
B121
Distribution

Ecozones

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

Distribution

0.531 (~53% of the NWT).
Score: 
Categ
References: 
B010

Number of Occurrences

41 +1 on Banks Island (B010, A136); subspecies arctica: Thomson, Scotter & Ahti, 1969 (Great Slave Lake study): 1 (R196); Localities given in Ahti et al. 1973 (Lichens of the Reindeer Preserve, Northwest Territories, Canada, The Bryologist 76: 48-76): 5 (R196); Thomson 1984 maps: 43 (R196) subspecies beringica: Localities given in Ahti et al. 1973 (Lichens of the Reindeer Preserve, Northwest Territories, Canada, The Bryologist 76: 48-76): 2 (R196); Thomson 1984 maps: 20 (R196). One specimen from Cape Bathurst, collected on August 18, 2022 by P. Sokoloff. Common in area.
Score: 
CE (2
References: 
B010
A136
R196

Area of Occupancy

Cape Bathurst (August 2022) specimen from northern shore 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
  • Brodo, I. M., Sharnoff, S. D, and Sharnoff, S. (2001) Lichens of North America. Yale University RWED Library - B121 Return

Naming

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return
  • Brodo, I. M., Sharnoff, S. D, and Sharnoff, S. (2001) Lichens of North America. Yale University RWED Library - B121 Return

Number of Occurrences

  • Thomson JW (1984) American Arctic Lichens. Columnia University Press RWED Library Call #QK597.T5 - B010 Return
  • Gould, W.A. (1994) Macrolichens of the Coppermine, Hood, and Thomsen Rivers, Northwest Territories, Canada. The Bryologist 97(1):42-46 copy in binder - A136 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