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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: Mesic hardwood forests, swamps

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Description

Greenish-brown thallus minutely areolate; black hemispherical disks; MICROSCOPY: colorless, needle-shaped spores, epihymenium & hypothecium dark purplish-brown; CHEMISTRY: no reactions; FIELD ID not possible, requires dissection to identify

Similar Species

Other Micarea species have different spores & apothecial pigments

Related Rare Species

None

Habitat

Mesic hardwood forests, swamps, on bark of Taxodium, Pinus, Quercus

Life History

Corticolous crustose lichenized fungus, photobiont 1 of various chlorococcoid unicellular green algae

Survey Recommendations

None

Range

Coastal Plain, sparingly into Piedmont

Threats

Unknown

Georgia Conservation Status

Rare

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

5 May 2022