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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: GNR

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 forest, maritime forest

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Description

Pale thallus; variably shaped dark lirellae obscured by broken bits of bark or thallus; MICROSCOPY: spores with end cells enlarged & up to 16 cells; FIELD ID: not identifiable with certainty in the field, requires dissection to observe spores & photobiont

Similar Species

Arthonia susa (more obscured-ascomata examples) has fewer cells in spore & chlorococcoid photobiont; A. cinnabarina can appear dull and lacking in reddish tones

Related Rare Species

None

Habitat

Mesic hardwood forest, maritime forest; on smooth hardwood bark: Ilex & Acer

Life History

Lichenized corticolous fungus; photobiont a species of alga in genus Trentepohlia

Survey Recommendations

None

Range

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

27 February 2022