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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: Mesic hardwood forest

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Description

Pale green lobes, edges crowded with proliferation of small lacy squamules; some squamules curling up to expose white undersides (perhaps only when dry); lobe margins fringed with cilia-like rhizines; underside ecorticate, white at tips, grading to purplish-black at center; FIELD ID: unmistakable

Similar Species

None

Related Rare Species

Heterodermia appalachensis, H. crocea, H. erecta

Habitat

Mesic hardwood forests; substrates: mostly hardwood bark, 50% Quercus & 20% Acer; 1 record on moss over bark, 1 on Pinus bark, & 1 on silicious rock

Life History

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

Survey Recommendations

None

Range

Mostly Southern Blue Ridge, with 1 each from Ridge & Valley & 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.

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.

Lendemer, J. C. 2009. A synopsis of the lichen genus Heterodermia (Physciaceae, lichenized Ascomycota) in eastern North America. Opuscula Philolichenum 6: 1-36.

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

24 March 2022