Loading profile. Please wait . . .

---

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 High Priority Species (SGCN): No

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Mesic upland hardwood forest, maritime forest, bottomland hardwood forest

---

Description

White, ecorticate thallus scrawled with white lirellae, appearing as cracks or fissures in the thallus, & edged with white rims; labia usually closed or only slightly open, except younger lirellae near edges of thallus, which can have exposed gray disks; MICROSCOPY: our only Fissurina with large (up to 100 µm long), colorless, muriform spores, 1-2/ascus; CHEMISTRY: no reactions; FIELD ID: requires dissection to eliminate similar species

Similar Species

Fissurina illiterata is also white and ecorticate, but has small, 4-celled spores as well as smaller lirellae without showy labia; Acanthothecis species are closest in appearance of thallus & spores, but have ornamented paraphyses (sometimes difficult to see) & usually react with K+ or PD+

Related Rare Species

None

Habitat

Mesic upland hardwood forest, maritime forest, bottomland hardwood forest; substrates: 31% Nyssa bark, 27% Magnolia, 19% Quercus, 12% Carya, and 8% other hardwoods; 1 record on Taxodium

Life History

Corticolous lichenized fungus, photobiont a species of alga in genus Trentepohlia

Survey Recommendations

None

Range

Coastal Plain

Threats

Unknown

Georgia Conservation Status

Uncommon

Conservation Management Recommendations

None

References

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.

Lendemer, J. C. 2010. Revised keys to the Graphidaceae in southeastern North America. Devised for the 2010 Tuckerman Workshop, Augusta, Georgia. Unpublished manuscript. The New York Botanical Garden, Bronx, N.Y.

Lücking, R., F. Seavey, R. S. Common, S. Q. Beeching, O. Breuss, W. R. Buck, L. Crane, M. Hodges, B. P. Hodkinson, E. Lay, J. C. Lendemer, R. T. McMullin, J. A. Mercado-Diaz, M. P. Nelsen, E. Rivas Plata, W. Safranak, W. B. Sanders, H. P. Schaefer Jr., & J. Seavey. 2011. The lichens of Fakahatchee Strand Preserve State Park, Florida: proceedings from the 18th Tuckerman Workshop. Florida Museum of Natural History Bulletin Vol. 49: 127-186.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

28 July 2022