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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 High Priority Species (SGCN): No

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Woodlands, forests and swamps

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Description

Relatively small, green-gray thallus of strongly fluted lobes with undersides brown at lobe edges (black in center); all but newest lobes edged with greenish soralia; lobes non-ciliate; CHEMISTRY: medulla/soralia K-, KC-, C-, PD-, UV- (no substances reactive to spot tests); FIELD ID requires a KC test to medulla to sort from P. gardneri

Similar Species

Parmotrema austrosinense is larger with white undersides and KC+, C+ red medulla; P. gardneri is similar but its medulla is KC+ pink, PD+ red (see key below)

Related Rare Species

None

Habitat

Woodlands, forests & swamps; substrates: hardwood bark: 34% Quercus & 42% other hardwoods or unknowns; conifer bark: 9% Pinus, 6% Taxodium & 5 records on Juniperus; 5 records on silicious rock & 1 on wooden shingles

Life History

Corticolous foliose lichenized fungus, photobiont a green alga (Trebouxia?)

Survey Recommendations

None

Range

Coastal Plain, Piedmont

Threats

Unknown

Georgia Conservation Status

Common

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

30 May 2022