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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: Shaded rock outcrops, rocky forests

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Description

Green (tan or brown occasionally--senescent?), minutely areolate thallus with black-rimmed disks 0.2-0.3 mm in diameter, disks granular in texture; mostly appears to associate closely with other rock crusts, e.g., Pertusaria plittiana, Phlyctis petraea; MICROSCOPY: spores brown, 4-celled; FIELD ID of fresh green thalli possible, especially if adjacent to lichen associates

Similar Species

None (though embrowned thalli can be confusing)

Related Rare Species

Buellia circumpallida

Habitat

Shaded rock outcrops, rocky forests, on silicious rock & hardwood bark

Life History

Saxicolous/corticolous crustose lichenized fungus, photobiont a green, unicellular alga in Trebouxia

Survey Recommendations

None

Range

Statewide

Threats

Unknown

Georgia Conservation Status

Uncommon

Conservation Management Recommendations

None

References

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.

Harris, R. C. & D. Ladd. 2005. Preliminary draft: Ozark lichens. Unpublished manuscript, New York Botanical Garden, Bronx, NY.

Tripp, E. A. & J. C. Lendemer. 2020. Field guide to the lichens of Great Smoky Mountains National Park. The University of Tennessee Press, Knoxville.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

6 March 2022