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Tremella parmeliarum Diederich
gall-forming parasite

Photo © Don Hunter, Brooks Co., Ga., 1 Feb. 2014
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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: None

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Follows hosts


Description

Galls colored tan to brown, often mottled pinkish, orange or white; 0.3-1 mm wide, simple hemispheres & clubs, or fluted & complex, growing on upper surface or margins of host

Similar Species

None

Related Rare Species

None

Habitat

Infecting several species of Parmotrema; apparently not fatal to hosts; frequently on P. praesorediosum, also multiple records each on P. hypoleucinum, P. neotropicum & P. reticulatum (records often only give genus, so other species possible)

Life History

Lichenicolous fungus, parasitic on Parmotrema species (hosts confined to that genus)

Survey Recommendations

None

Range

Statewide

Threats

Unknown

Georgia Conservation Status

Uncommon

Conservation Management Recommendations

None

References

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.

Nash III, T. H., B. D. Ryan, P. Diederich, C. Gries & F. Gungartz (eds.). 2004. Lichen flora of the greater Sonoran Desert region. Vol. II. Lichens Unlimited, Arizona State University, Tempe.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

1 August 2022