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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G5

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 forests

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Description

Gray-brown to gray thallus, lobes about 0.5-1 mm wide, inner thallus covered with thick cylindrical isidia standing up from thallus; lower surface mostly attached, without a cortex; thallus rimmed & underlain by dense black prothallus; apothecia not seen; FIELD ID: grayer color & cylindrical isidia are key characters

Similar Species

Parmeliella appalachensis is brown & has lobules; Parmeliella pannosa is more lobulate, browner, & restricted to the Coastal Plain, with little to no overlap in range

Related Rare Species

None

Habitat

Mesic hardwood forests, mostly on Quercus bark; 1 record on ultramafic rock (dunite)

Life History

Corticolous, minutely foliose or squamulose lichenized fungus, photobiont a cyanobacterium in Nostoc

Survey Recommendations

None

Range

Mostly Southern Blue Ridge, with a scattering of records in the Cumberland Plateau & Piedmont

Threats

Unknown

Georgia Conservation Status

Rare to occasional

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.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

16 May 2022