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Lecanora louisianae de Lesd.
Louisiana Rim

Photo © Don Hunter, Monroe Co., Ga., 13 September 2016 (wet)
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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:

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Woodlands, forests


Description

Pale gray-green thallus continuous; disks consistently round, yellow, white-rimmed when young, grading to thalline rims that are smooth to slightly beaded; CHEMISTRY: disks C+ orange, UV-/+ orange (xanthones) ; FIELD ID possible, confirmed with field C test

Similar Species

Pale examples of Lecanora hybocarpa and L. chlarotera can look similar; their disks are C-; L. cupressi has a yellow-green thallus & yellow pruina on disks, which are C-

Related Rare Species

None

Habitat

Woodlands, forests; substrates: hardwood bark: 44% Quercus, 10% Acer, 8% Prunus & 32% other hardwoods or unknowns; conifer bark: 5% Taxodium, & 1 record each from Juniperus & Pinus

Life History

Corticolous crustose lichenized fungus, photobiont a green unicellular alga (Pseudotrebouxia)

Survey Recommendations

None

Range

Threats