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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: Small-stream hardwood swamp forest

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Description

White, ecorticate thallus scrawled with white lirellae, fairly long and branching, appearing as cracks or fissures in the thallus, & edged with white rims; labia usually closed or only slightly open; MICROSCOPY: spores colorless, muriform, cells about 4-5 x 1-3(?), about 18 x 11 µm; CHEMISTRY: no substances or spot-test reactions; FIELD ID: requires dissection to examine spores

Similar Species

Fissurina illiterata is very similar, but has small, septate spores; F. cypressi is similar but has bolder lirellae often open, exposing gray-pruinose disks, & large, muriform spores

Related Rare Species

None

Habitat

Small-stream riparian strand forest imbedded in pine flatwoods (within Okefenokee Basin), on Nyssa bark

Life History

Corticolous lichenized fungus, photobiont a species of alga in genus Trentepohlia

Survey Recommendations

None

Range

Coastal Plain

Threats

Unknown

Georgia Conservation Status

Rare

Conservation Management Recommendations

None

References

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.

Lendemer, J. C. & R. C. Harris. 2014. Seven new species of Graphidaceae (Lichenized Ascomycetes) from the Coastal Plain of southeastern North America. Phytotaxa 189: 153-175.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

4 January 2024