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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

Pale thallus with small, black disks fairly flat with smooth margins; MICROSCOPY: colorless spores with 13-21 cells, 47-90 µm long; FIELD ID: dissection is required to sort out black-dot lichens on bark

Similar Species

Baculifera, Buellia & Cratiria species have brown spores with 2-4 cells; other Bactrospora species also have colorless spores, B. carolinensis spores with up to 10 cells & up to 50 µm long, & B. brevispora much shorter spores

Related Rare Species

None

Habitat

Mesic hardwood forests

Life History

Corticolous crustose lichenized fungus, photobiont an alga in genus Trentepohlia

Survey Recommendations

None

Range

Coastal Plain

Threats

Unknown

Georgia Conservation Status

Rare to occasional

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 Unpublished manuscript, Bronx, N.Y.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

6 March 2022