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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

Greenish thallus, thick, corticate, often showing a faintly golden center or broad golden ring (see image below), & with narrow white prothallus; apothecia tiny (0.1 mm in diameter), irregular, sunken, sides occasionally pulling away from thallus, edges of apothecial pits raised, whitish, disks black; apothecia usually in small groups dispersed over broad areas of sterile thallus; MICROSCOPY: spores brown, muriform, 8/ascus, cells about 4 x 2-3; CHEMISTRY: thallus K+ yellow, PD+ orange (stictic acid); FIELD ID: dissection & chemical tests required to separate from related species

Similar Species

Sanguinotrema, Myriotrema & other Leucodecton species have different spores

Related Rare Species

None

Habitat

Mesic hardwood forests; substrates: bark of Quercus, Fagus, Carya & other hardwoods or unknowns

Life History

Corticolous crustose lichenized fungus, photobiont a green alga in Trentepohlia

Survey Recommendations

None

Range

Coastal Plain & Piedmont

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.

Harris, R. C. 1995. More Florida lichens including the 10-cent tour of the pyrenolichens. Unpublished manuscript, Bronx, N.Y.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

4 May 2022