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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G5

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: Rock outcrop complexes, woodlands with boulders

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Description

Pale tan thallus is rimose-areolate; disks sunken but open, with variable widths, blue-gray with a light pruina, & with raised white rims; MICROSCOPY: spores brown, muriform, 4-8/ascus; FIELD ID possible, observing lumpy thallus & open, grayish disks

Similar Species

Diploschistes muscorum is similar but the thallus is more continuous & usually on or near its host Cladonia

Related Rare Species

None

Habitat

Rock outcrop complexes, woodlands with boulders, on silicious rock

Life History

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

Survey Recommendations

None

Range

Mostly above the Fall Line, with 1 record just across it in the Coastal Plain

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.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

27 July 2022