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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: GNR

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: Mixed pine ? hardwood woodlands, mesic hardwood forests, small-stream hardwood swamp forests

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Description

Whitish to pale green thallus with black lirellae; no thalline margin at sides of prominent, sessile lirellae; lirellae tightly closed (disks concealed); labia striate; MICROSCOPY: exciple laterally carbonized; hymenium clear; spores septate, 10-12-celled (spores difficult to find in dissection, leaving this species under-reported); CHEMISTRY: all reactions negative; FIELD ID: most Graphis are best left at genus without dissection & chemical tests, though with experience this species is identifiable with careful observation

Similar Species

Only Graphis in Ga. with striate labia, laterally carbonized exciple & no chemical reactions

Related Rare Species

Graphis endoxantha

Habitat

Mixed pine – hardwood woodlands, mesic hardwood forests, small-stream hardwood swamp forests; substrates: hardwood bark, almost half on Quercus

Life History

Corticolous crustose lichenized fungus, photobiont a species of alga in genus Trentepohlia

Survey Recommendations

None

Range

Coastal Plain & Piedmont

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.

Lücking, R., A. W. Archer & A. Aptroot. 2009. A world­wide key to the genus Graphis (Ostropales: Graphidaceae). Lichenologist 41: 363­452.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

8 March 2022