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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: Montane hardwood or mixed forests, rocky Piedmont woodlands

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Description

Dark brown or gray-brown smooth thallus usually sterile (no perithecia), but with dense, fine gray cylindrical isidia covering thallus; FIELD ID straightforward if noticed & studied

Similar Species

Porina scabrida looks similar but for its orange-brown to tan color

Related Rare Species

None

Habitat

Montane hardwood or mixed forests, rocky Piedmont woodlands, on Acer & Quercus bark

Life History

Corticolous crustose lichenized fungus, photobiont an alga in Trentepohlia

Survey Recommendations

None

Range

Southern Blue Ridge, Piedmont

Threats

Unknown

Georgia Conservation Status

Rare, though its small, dull-colored thalli are likely overlooked

Conservation Management Recommendations

None

References

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.

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 Unpublished manuscript, New York Botanical Garden, Bronx, NY.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

4 August 2022