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: Mesic hardwood forests

---

Description

Pale green, relatively thick thallus with chestnut-brown disks; disks rimmed pale tan, contrasting with disk color; disks often frosted with bright yellow pruina; CHEMISTRY: yellow-dusted disks K+ purple; FIELD ID: a field K test can confirm reaction of yellow pruina; unmistakable with experience

Similar Species

Caloplaca camptidia has a thicker thallus, with some disks usually dusted gray (K-)

Related Rare Species

None

Habitat

Mesic hardwood forests; substrates: 41% Quercus, 30% Carya, 29% other hardwoods

Life History

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

Survey Recommendations

None

Range

Piedmont, Coastal Plain

Threats

Unknown

Georgia Conservation Status

Rare to occasional

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

14 July 2022