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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: GNR

State Rank: SU

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: Bottomland hardwood forest

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Description

Dull white crust, thallus not corticate, solitary black perithecia with thin thalline covering when young, naked at maturity; MICROSCOPY: spores colorless, 4-celled, about 20 x 6 µm; CHEMISTRY: thallus UV-; FIELD ID not possible, requires dissection

Similar Species

Anisomeridium quadricoccum also has 4-celled colorless spores, but they are larger, about 21-24 µm long 

Related Rare Species

None

Habitat

Bottomland hardwood forest, on Nyssa bark

Life History

Corticolous crustose lichenized fungus, photobiont an alga in genus Trentepohlia

Survey Recommendations

None

Range

Coastal Plain

Threats

Unknown

Georgia Conservation Status

Rare

Conservation Management Recommendations

None

References

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 Unpublished manuscript, Bronx, N.Y.

Ingle, K. K., S. Trivedi, S. Nayaka & D. K. Upreti. 2017. The lichen genera Dictyomeridium and Polymeridium (Trypetheliales: Trypetheliaceae) in India. Taiwania 62: 50-54.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

4 August 2022