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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: Mesic hardwood forests

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Description

Pale green thallus entirely coarsely sorediate; white fibrous prothallus conspicuous, though sometimes patchy; CHEMISTRY: thallus K+ yellow, KC+ gold (atranorin, usnic acid); FIELD ID: best sorted in lab with careful examination & chemical tests, due to similarity with other sterile sorediate crusts

Similar Species

Several other sterile sorediate crusts can be confused with this species

Related Rare Species

None

Habitat

Mesic hardwood forests, on Acer, Hamamelis & Liriodendron bark

Life History

Corticolous crustose lichenized fungus, photobiont a unicellular green alga (Pseudotrebouxia)

Survey Recommendations

None

Range

Southern Blue Ridge, occasionally in Piedmont

Threats

Unknown

Georgia Conservation Status

Rare

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

19 April 2022