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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: Limerock outcrops

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Description

Olive-brown thallus with narrow, flattened to terete, variably curled, twisted, often ascending lobes, sometimes adnate to rock surface; immature apothecia immersed, forming brown cups on surface, arranged in crowded elongate groupings resembling suckers on a cephalopod tentacle, broad and sessile at maturity; MICROSCOPY: cortex of lobes acellular, spores colorless, submuriform, 8/ascus, about 17 x 10 µm; FIELD ID: unmistakable with a little experience, in proper habitat

Similar Species

Other Collema on limestone have flatter lobes or different spores; Leptogium species have a cellular cortex, & very different appearance

Related Rare Species

None

Habitat

Limerock outcrops, on limestone

Life History

Saxicolous foliose lichenized fungus, photobiont a cyanobacterium in Nostoc

Survey Recommendations

None

Range

Cumberland Plateau, Ridge & Valley

Threats

Unknown

Georgia Conservation Status

Uncommon to fairly common in proper habitat

Conservation Management Recommendations

None

References

Brodo, I. M. 2001. Lichens of North America. 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. & D. Ladd. 2005. Preliminary draft: Ozark lichens. Unpublished manuscript, New York Botanical Garden, Bronx, NY.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

25 July 2022