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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G5

State Rank: SNR

Element Locations Tracked in Biotics: No

SWAP 2015 Species of Greatest Conservation Need (SGCN): No

SWAP 2025 Species of Greatest Conservation Need (SGCN): No

2025 SGCN Priority Tier: None

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Wet rocks beside streams, or at seeps

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Description

Brown (dry) or dark green (wet) thallus crowded with overlapping lobes 2-8 mm in width, stippled with dark ostioles of imbedded perithecia; lower surface black, smooth; multiple holdfasts attach lobes to rock; FIELD ID possible with experience, with habitat a clue

Similar Species

Other Dermatocarpon species have larger or longer lobes; D. muhlenbergii is the only species in Ga. found on calcareous rock

Related Rare Species

None

Habitat

Wet rocks beside streams, or at seeps, on silicious rock

Life History

Saxicolous crustose lichenized fungus, photobiont a unicellular green alga (Myrmecia or other)

Survey Recommendations

None

Range

All regions above the Fall Line

Threats

Unknown

Georgia Conservation Status

Uncommon

Conservation Management Recommendations

None

References

Brodo, I. M. 2001. Lichens of North America. Yale University Press, New Haven, Conn.

Brodo, I. M. 2016. Keys to lichens of North America: revised and expanded. Yale University Press, New Haven, Conn.

Esslinger, T. L. 2021. A cumulative checklist for the lichen-forming, lichenicolous and allied fungi of the continental United States and Canada. Version 24. Opuscula Philolichenum 20: 100-394.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

26 July 2022