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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:

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Mesic hardwood forests and swamps

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Description

Smooth thallus is creamy, pale gray or whitish, with relatively small, discrete, mounded soralia spaced evenly over thallus, close in color to the thallus (some examples have finer, slightly darker granules); CHEMISTRY: thallus K+ yellow, PD+ orange (stictic acid); FIELD ID possible with experience, keying in on small soralia evenly spaced around pale thallus, but chemical tests recommended to confirm

Similar Species

Other sterile sorediate crusts with different chemistry often have a greener thallus (e.g., Lepra, Haematomma)

Related Rare Species

None

Habitat

Mesic hardwood forests & swamps; substrates: 22% Quercus bark, 13% Carpinus, 13% Carya, 10% Acer, 6% Fagus, 6% Ilex, 5% Liriodendron, & the remainder the bark of other hardwoods, excepting 1 record on Taxodium

Life History

Corticolous crustose lichenized fungus, photobiont an alga in genus Trentepohlia

Survey Recommendations

None

Range

Statewide

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.

Harris, R. C. & D. Ladd. 2005. Preliminary draft: Ozark lichens. Unpublished manuscript, New York Botanical Garden, Bronx, NY.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

6 May 2022