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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G5

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 forests, mixed pine ? hardwood woodlands

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Description

Deep green to gray-green thallus, lobes 0.5-1 mm wide, fringed with black, white-tipped cilia & rhizines; soralia of fine bright-green soredia, often in globular soralia perched on lobe tips, sometimes in more linear soralia along margins, & others between those extremes; thin medulla white, lower cortex black; CHEMISTRY: cortex & medulla K-; FIELD ID: straightforward with careful study, noting bright mounds of fine soralia; confirm it is a shadow lichen with a K test to cortex, if needed

Similar Species

Phaeophyscia adiastola has coarse green (to brown or black) soredia in marginal soralia; rare P. insignis has laminal soralia & pale undersides

Related Rare Species

None

Habitat

Mesic hardwood forests, mixed pine – hardwood woodlands; substrates: hardwood bark: 12 records on Acer, 7 on Quercus & 14 on other hardwoods or unknowns; 2 records on moss over rock or hardwood bark; 2 records on silicious rock & 1 on calcareous rock

Life History

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

Survey Recommendations

None

Range

Mostly north of the Fall Line, with a few scattered records in northwest Coastal Plain

Threats

Unknown

Georgia Conservation Status

Uncommon

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.

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

3 August 2022