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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: GU

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: Maritime forest, mesic hardwood forest, swamps

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Description

Pale gray-green ecorticate thallus with thick white cottony prothallus, center of thallus sometimes whiter, with scurfy isidia; thallus retains round or oval shape due to aggressively growing over lichens or bryophytes in its path; CHEMISTRY: thallus K-, KC+ red, C+ red (gyrophoric acid); FIELD ID possible with experience, but field chemical tests recommended if any question

Similar Species

Herpothallon rubrocinctum & H. rubroechinatum have red or orange pigments reacting K+ purple; H. echinatum is unpigmented & thus most similar to C. striata, but has a thinner thallus reacting K-, KC-, PD+ bright yellow; Arthonia montagnei (fairly common in Coastal Plain on hardwood bark but currently excluded from NatureServe & GA DNR databases due to nomenclatural issue; photo below) is similar, but has green to olive-green thallus that lacks isidia, has pale lumps at thallus center obscuring ascomata, & has thallus (especially at edge of prothallus) reacting K+ yellow (atranorin)

Related Rare Species

None

Habitat

Maritime forest, mesic hardwood forest, swamps, on hardwood bark: 38% Quercus, 28% Nyssa, 14% Acer & 21% other hardwoods (seen but not collected on Altamaha Formation sandstone)

Life History

Corticolous crustose lichenized fungus, photobiont an alga in genus Trentepohlia

Survey Recommendations

None

Range

Southern 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

26 July 2022