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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G3G5

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: Maritime forest, mesic hardwood forest

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Description

Crowded pale-green lobes tightly adhering to substrate, dividing to fill all space as lichen grows out; flat purple disks with green rims confined to older parts of thallus (disks have a warm reddish-purple cast, not cool gray-blue-purple); no rhizines on black underside; FIELD ID: unmistakable with experience; if any question, it is likely D. confusa or D. confluens

Similar Species

Dirinaria confusa/D. confluens pair have purplish-blue-gray disks

Related Rare Species

None

Habitat

Maritime forest, mesic hardwood forest, on hardwood bark, heavy on Quercus, Celtis & Ulmus; 1 record on Juniperus

Life History

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

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 July 2022