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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G3G4

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: Montane rocky forests

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Description

Thick, pale greenish-gray thallus with broad white prothallus, smooth edges; stout, cylindrical isidia dense and even in height, often branching & crowding most of thallus; CHEMISTRY: thallus cortex KC+ red, C+ pink/red (gyrophoric acid), thallus UV-; FIELD ID possible with experience, but chemical tests recommended

Similar Species

Pertusaria globularis grows in similar situations, but is more often on mosses, has thinner isidia, & is KC-/C-

Related Rare Species

None

Habitat

Montane rocky forests; substrates: 73% silicious rock, 27% hardwood bark (5 records on Quercus, 1 on Carya)

Life History

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

Survey Recommendations

None

Range

Southern Blue Ridge, Cumberland Plateau; 1 Piedmont site (Stone Mt.)

Threats

Unknown

Georgia Conservation Status

Uncommon

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.

Tripp, E. A. & J. C. Lendemer. 2020. Field guide to the lichens of Great Smoky Mountains National Park. The University of Tennessee Press, Knoxville.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

10 May 2022