Loading profile. Please wait . . .

---

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: River rocks, shaded seeps in forests

---

Description

Dark olive-brown crust rimose at center with lobed edges, lacking a prothallus; lobes up to 0.4 mm wide, often longer than 2 mm; flattened isidia or lobules on surface of thallus; FIELD ID possible with experience

Similar Species

None

Related Rare Species

None

Habitat

River rocks, shaded seeps in forests, on wet, silicious rock

Life History

Saxicolous crustose lichenized fungus, photobiont a cyanobacterium (usually Dichothryx)

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

3 August 2022