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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: Dry rock outcrops

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Description

Dull brown scales, irregularly shaped, often crowded on rock surface; CHEMISTRY: medulla C+ red (gyrophoric acid; best tested under microscope); FIELD ID: appearing as a brown crust on rock with cracks around scales, often with a dark brown dot at center; scales green when wet

Similar Species

Trimmatothelopsis dispersa is scattered over substrate, & medulla is C-

Related Rare Species

None

Habitat

Dry rock outcrops; mostly noncalcareous metamorphic, sedimentary & igneous rock; 1 record from calcareous rock

Life History

Saxicolous lichenized fungus; photobiont an alga in genus Trebouxia

Survey Recommendations

None

Range

Mostly above the Fall Line in Piedmont, Ridge & Valley, Southern Blue Ridge

Threats

Quarrying

Georgia Conservation Status

Uncommon

Conservation Management Recommendations

Conserve rock outcrops

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.  

Nash III, T. H., C. Gries & F. Gungartz (eds.). 2007. Lichen flora of the greater Sonoran Desert region. Vol. III. Lichens Unlimited, Arizona State University, Tempe.

Authors of Account

Malcolm Hodges & Sean Beeching

Date Compiled or Updated

27 February 2022