Loading profile...

Loading profile. Please wait . . .

Chrysothrix insulizans R.C. Harris & Ladd
K-red Islets

Photo © Giff Beaton, Heard Co., Ga., 22 Mar. 2020
range map button NatureServe button Report Button About button

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: Vertical faces on massive rock outcrops, boulders


Description

Bright yellow leprose thallus, becoming yellow-green in shaded habitats; granules often clumped into small patches, or aggregated into larger areas; CHEMISTRY: thallus K+ red, slowly; FIELD ID possible with field K test

Similar Species

Chrysothrix xanthina & C. onokoensis are K-

Related Rare Species

None

Habitat

Vertical faces on massive rock outcrops, boulders, on silicious rock; 1 record on limestone

Life History

Saxicolous, leprose lichenized fungus, photobiont a green alga

Survey Recommendations

None

Range

Mostly Ridge & Valley & Piedmont; scattered records in Coastal Plain

Threats

Unknown

Georgia Conservation Status

Common

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.

Lendemer, J. C. 2010. Preliminary keys to the typically sterile crustose lichens in North America. Prepared for the Sterile Crustose Lichen Course—Eagle Hill, Maine. The New York Botanical Garden, Bronx, N.Y.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

21 July 2022