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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G2

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: Maritime forest, mixed pine – hardwood forest

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Description

Pale thallus with sunken black disks and raised rims; chemistry: thallus K+ red (norstictic acid); microscopy: disk a mazaedium, spores brown, 2-celled; FIELD ID: the confusing array of stubble lichens & unlichenized fungi require dissection to sort out

Similar Species

Other Calicium species have stalked apothecia

Related Rare Species

None

Habitat

Maritime forest, mixed pine – hardwood forest, usually on Juniperus wood; 1 specimen on Taxodium wood

Life History

Lignicolous, crustose lichenized fungus, photobiont a green alga

Survey Recommendations

None

Range

Coastal Plain, disjunct in northern Piedmont

Threats

Unknown

Georgia Conservation Status

Rare

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. 1995. More Florida lichens including the 10-cent tour of the pyrenolichens. Unpublished manuscript, Bronx, N.Y.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

12 July 2022