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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:

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Forests and woodlands

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Description

Pale green, thin thallus with dull medium-brown disks; disks edged pale tan, contrasting with disk color; disks often frosted with gray pruina; CHEMISTRY: disks K-; FIELD ID possible with experience

Similar Species

Caloplaca ulmorum has a thicker thallus, with some disks dusted with a bright yellow pruina

Related Rare Species

None

Habitat

Forests, woodlands; substrates: hardwood bark: 39% Quercus, 21% Carya, 10% Acer; 1 record each from Juniperus & Pinus, & 4 from Taxodium

Life History

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

Survey Recommendations

None

Range

Statewide

Threats

Unknown

Georgia Conservation Status

Common

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

11 May 2022