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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 forest, bottomland hardwood

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Description

Grayish-white, matte, continuous thallus with bold, sessile lirellae; disks hidden, black labia large, puffy, with smooth, semi-gloss surface; lirellae long, branched, dense (as above) to fairly sparse; MICROSCOPY: spores 4-celled, colorless, with rounded ends, about 13-15 x 3-5 µm; FIELD ID not possible, dissection required

Similar Species

Opegrapha vulgata has 6-celled spores; Zwackhia viridis has slightly smaller, more cracked lirellae, a darker brown or green thallus & more cells/spore

Related Rare Species

None

Habitat

Mesic hardwood forest, bottomland hardwood swamp forest; substrates: 2 records on Nyssa bark, 1 on Quercus

Life History

Corticolous crustose lichenized fungus, photobiont an alga in 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 Unpublished manuscript, Bronx, N.Y.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

10 May 2022