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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

Thallus obscure, within substrate; perithecia globose, about 0.1-0.3 mm in diameter, yellowish to buff, often colored gray to black except for a yellow ring around the ostiole; perithecia partly exposed, to entirely immersed with little more than ostiole showing; ostioles at apex or eccentric; MICROSCOPY: spores many/ascus, colorless, simple; FIELD ID: requires dissection

Similar Species

Thelopsis inordinata & Topelia aperiens have muriform spores; Thelopsis rubella has 4(-6)-celled spores

Related Rare Species

None

Habitat

Mesic hardwood forests, on Quercus & Carya bark

Life History

Corticolous crustose lichenized fungus, photobiont a green alga (Trentepohlia?)

Survey Recommendations

None

Range

Coastal Plain, Piedmont

Threats

Unknown

Georgia Conservation Status

Rare, though likely overlooked

Conservation Management Recommendations

None

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.

Harris, R. C. 1979. Four species of Thelopsis Nyl. (lichenized Ascomycetes) new to North America. Bryologist 82: 77-78.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

1 August 2022