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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G4G5

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: In most habitats with trees or shrubs

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Description

Pale green to greenish-yellow (high light), continuous thallus, smooth to lumpy (in some older thalli, as in photo); apothecia within thalline, conical warts with 1 or more ostioles at summit; ostioles usually yellow & frequently raised into nipples; MICROSCOPY: spores ellipsoid, colorless, simple, 8/ascus; CHEMISTRY: cortex (around ostiole) K-, KC+ orange, C-/+ yellow, PD-, UV+ orange thiophanic acid), medulla K+ yellow, PD+ pale orange (stictic acid); FIELD ID: easily told with experience, keying in on color, sloping sides to warts, yellow nipples at ostioles, & bright UV reaction, confirming at home with PD test if needed

Similar Species

Pertusaria appalachensis has medulla UV+ orange; P. epixantha medulla is K-, PD-, its ostioles are seldom raised into nipples (usually flat), & its warts are often puffy & with vertical (not sloping) sides

Related Rare Species

Pertusaria appalachensis

Habitat

In most habitats with trees or shrubs; substrates: hardwood bark: 29% Quercus, 16% Acer, 9% Carya, 6% Prunus, 5% Nyssa & 31% other hardwoods or unknowns; conifer bark: 6 records on Juniperus & 2 on Taxodium; 2 records on silicious rock; a frequent member of twig & small branch communities

Life History

Corticolous crustose lichenized fungus, photobiont a green alga in Trebouxia

Survey Recommendations

None

Range

Statewide

Threats

Unknown

Georgia Conservation Status

Common to abundant in both wet & dry habitats

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

7 August 2022