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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: Woodlands, forests

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Description

Pale silvery-gray thallus with smudgy dark ascomata, variably shaped; no warm tones, no photobiont evident; MICROSCOPY: spores rarely seen; FIELD ID: pale, translucent thalli on twigs with smudgy lirellae are usually this species, but dissection needed to confirm lack of photobiont

Similar Species

Other Arthonia species are lichenized or parasitic on lichens

Related Rare Species

None

Habitat

Woodlands & forests on hardwood bark, especially twigs & small branches

Life History

Corticolous crustose fungus

Survey Recommendations

None

Range

Throughout the state

Threats

Unknown

Georgia Conservation Status

Common

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. & D. Ladd. 2005. Preliminary draft: Ozark lichens. Unpublished manuscript, New York Botanical Garden, Bronx, NY.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

27 February 2022