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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:

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Variety of natural and anthropogenic habitats

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Description

Gray-green thallus, lobes 0.5-1 mm wide, convex; soralia mounded on thallus surface or along lobe edges; lower cortex & rhizines white; CHEMISTRY: cortex & medulla K-; FIELD ID: requires careful study of thallus & field K test to cortex

Similar Species

Physciella chloantha has soralia within lobe tips, lip-shaped; Physcia species all have K+ yellow cortex; rare Phaeophyscia insignis also has K- upper cortex, laminal soralia & pale undersides, but it has flat lobes & a marginal fringe of cilia & rhizines

Related Rare Species

None

Habitat

Variety of natural & anthropogenic habitats; 1 record each on limestone, concrete & Acer bark

Life History

Saxicolous/corticolous foliose lichenized fungus, photobiont a green alga (Trebouxia?)

Survey Recommendations

None

Range

Records from Cumberland Plateau, Ridge & Valley, Coastal Plain

Threats

Unknown

Georgia Conservation Status

Rare

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

3 August 2022