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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: Pine ? hardwood woodlands, hardwood forests

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Description

Green to brownish thick, areolate thallus, areoles sometimes lifting off substrate & appearing squamulose, & some developing lobules; apothecia with lumpy or minutely squamulose thalline rims & brown disks; MICROSCOPY: spores large (around 25-27.5 µm long), brown, 2-celled, ellipsoid, with rounded lumina & thick cell walls; CHEMISTRY: thallus PD-; FIELD ID: inconspicuous, but with careful study, ID is possible in the field, especially for well-developed specimens with easily-seen lobules around disk rims (as in photo above)

Similar Species

Rinodina maculans has a thin, continuous thallus, patchy, thin rims on disks; R. ascociscana is most similar, but it lacks lobules & has smaller spores

Related Rare Species

None

Habitat

Pine – hardwood woodlands, hardwood forests, on hardwood bark, especially Quercus & Carya; 1 record on Liquidambar

Life History

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

Survey Recommendations

None

Range

Widely scattered statewide

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.

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.

Sheard, J. W. 2010. The lichen genus Rinodina (Ach.) Gray (Lecanoromycetidae, Physciaceae) in North America, north of Mexico. National Research Council of Canada, Ottawa.

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

29 July 2022