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Strigula stigmatella (Ach.) R.C. Harris
Common Bark-bumps

Photo © Malcolm Hodges, from a specimen collected in Lanier Co., 8 January 2011
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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G3G5

State Rank: SU

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: Isolated freshwater swamp complex


Description

Whitish to gray thallus thin, continuous; perithecia black, about 0.3-0.4 mm in diameter, with a thin thalline veil when young, naked at maturity; MICROSCOPY: spores colorless, 4-7-celled, , about 21-25 x 5-7.5 µm; FIELD ID: one of several crusts with white thallus & black perithecia requiring dissection to identify

Similar Species

Several unrelated whitish, ecorticate crusts with black perithecia are found on hardwoods (see key below)

Related Rare Species

None

Habitat

Isolated freshwater swamp complex, on Cyrilla bark

Life History

Corticolous foliose lichenized fungus, photobiont a green alga in Trentepohlia

Survey Recommendations

None

Range

Coastal Plain

Threats

Unknown

Georgia Conservation Status

Rare

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.

Harris, R. C. 1995. More Florida lichens including the 10-cent tour of the pyrenolichens. Unpublished manuscript, Bronx, N.Y.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

30 July 2022