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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: Rocky montane woodlands

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Description

Greenish to gray thallus rimose-areolate; disks dark brown, some showing concentric brown layers of exciple at edges; disks can appear to perch on a pedestal of thallus; MICROSCOPY: apothecia with an elongate, relatively long, colorless stipe below, spores simple, colorless, 8/ascus, about 16-17 x 6.5-9.5 µm; CHEMISTRY: thallus KC+, C+ reddish (gyrophoric acid); FIELD ID not possible; requires dissection to examine spores & structures beneath apothecia

Similar Species

Trapelia glebulosa is areolate, sometimes lobed at edges, & apothecia have no stipe at base in cross-section; T. coarctata has a short, broad stipe at its base, & a more continuous thallus

Related Rare Species

None

Habitat

Rocky montane woodlands, on silicious rock

Life History

Saxicolous crustose lichenized fungus, photobiont a green alga in Chlorella or Protococcus

Survey Recommendations

None

Range

Southern Blue Ridge

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.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

1 August 2022