Lecanora floridula Lumbsch
Southern Powdered-rim
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 upland forests, maritime forest, swamps
Pale green to whitish thallus continuous to rimose, often verruculose; coarse soredia forming near edges originally as discrete soralia, merging in older parts of thallus; apothecia (sometimes rare or absent) with pale to medium brown disks & smooth to sorediate thalline rims; when young, apothecia are immersed in thallus, becoming sessile when mature; CHEMISTRY: thallus K- (occasionally + pale yellow), other tests negative; FIELD ID: fairly distinctive when fertile, but sterile examples resemble other sorediate crusts
If sterile, other pale sterile sorediate crusts with negative or indeterminate chemistry
None
Mesic upland forests, maritime forest, swamps, on hardwood bark: mostly Nyssa, also Quercus, Magnolia & Liquidambar
Corticolous crustose lichenized fungus, photobiont a unicellular green alga (Pseudotrebouxia)
None
Coastal Plain
Unknown
Uncommon
None
Brodo, I. M. 2001. Lichens of North America. Yale University Press, New Haven, Conn.
Bungartz, F., J. A. Elix & C. Printzen. 2020. Lecanoroid lichens in the Galapagos Islands: the genera Lecanora, Protoparmeliopsis, and Vainionora (Lecanoraceae, Lecanoromycetes). Phytotaxa 431: 001-085.
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
17 April 2022