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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G4G5

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: Mesic hardwood forests

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Description

Gray foliose thallus, lobes 0.5-2 mm wide, lower surface with thick, blue-black tomentum; rusty-brown disks with scalloped or toothed thalline rims; often with rounded lobules on lobe margins; CHEMISTRY: PD-/+ orange (pannarin sometimes detectable); FIELD ID: separation from lookalike species may require measurement of lobe widths; PD test recommended

Similar Species

Pannaria subfusca is smaller & always PD-; P. lurida is browner, with veined lobe surfaces

Related Rare Species

None

Habitat

Mesic hardwood forests; substrates: 3 records each on bark of Carya & Quercus, 1 on Fraxinus

Life History

Corticolous foliose lichenized fungus, photobiont a cyanobacterium (Nostoc)

Survey Recommendations

None

Range

Scattered records statewide

Threats

Unknown

Georgia Conservation Status

Rare

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

16 May 2022