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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: GNR

State Rank: SU

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: Altamaha Formation outcrop complex

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Description

Yellowish foliose thallus with isidia on older parts of lobes, numerous short black cilia at lobe edges with distinct bulbs at bases (sometimes difficult to see in the field); lobes branching to form rounded loops which at a glance resemble disks; undersides black; CHEMISTRY: medulla K+ red (norstictic acid); FIELD ID: best identified under dissecting scope

Similar Species

Bulbothrix species are usually on bark, & are gray-green, some with different chemistry

Related Rare Species

None

Habitat

Altamaha Formation outcrop complex, on sunny sandstone

Life History

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

Survey Recommendations

None

Range

Coastal Plain

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 Unpublished manuscript, Bronx, N.Y.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

June 20, 2022