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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: Mixed conifer ? hardwood forests

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Description

Pale yellow-green to gray-green thallus with bright yellow medulla (showing on thalli where the algal layer has been grazed off); lobes are ruffled, with finely dissected margins, but without soralia or isidia; chestnut-brown apothecia frequent, also with dissected & lobulate margins; undersides pale tan-yellow to white; FIELD ID: revealing the yellow medulla can help distinguish from similar species

Similar Species

Ahtiana aurescens is superficially similar, but has a white medulla

Related Rare Species

None

Habitat

Mixed conifer – hardwood forests, mostly on Quercus bark; also Crataegus & Tsuga

Life History

Corticolous foliose lichenized fungus, photobiont a green alga (Trebouxia?)

Survey Recommendations

None

Range

Mostly Southern Blue Ridge, with scattered records in Piedmont; rare disjunct in Coastal Plain

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

2 August 2022