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Candelaria concolor (Dickson) B. Stein
Candleflame; Lemon lichen
Federal Protection: No US federal protection
State Protection: No Georgia state protection
Global Rank: G5
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:
Element Occurrences (EOs) in Georgia: 0
Habitat Summary for element in Georgia: Forests and woodlands
Bright yellow to pale yellow-green thallus with yellow soralia at lobe tips, lobes less than 1 mm wide; CHEMISTRY: thallus K-; FIELD ID: if any hints of orange in thallus, and if soralia under the surface of lobe tips, then conduct a field K test to eliminate Xanthomendoza
Candelaria fibrosa has apothecia & lacks soralia, but is otherwise identical; Xanthomendoza weberi has hooded soralia at lobe tips, is usually orange & its thalli are K+ purple; this species can resemble Candelariella when very small
None
Forests, woodlands; substrates: hardwood bark, including 19% Quercus, 14% Acer, 8% Carya; conifer bark, including 9% Juniperus, 4 records on Taxodium, & 2 on Pinus; 13% from rock, mostly silicious (a few records from concrete)
Corticolous foliose lichenized fungus, photobiont a green alga (Trebouxia?)
None
Statewide
Unknown
Common to abundant in disturbed habitats; among a suite of lichens most abundant in areas with nitrogenous pollution (e.g., near intensive agriculture, chicken farms, cattle feedlots, sewage treatment plants)
None
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.
Malcolm Hodges
11 May 2022