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 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: Hardwood forests

---

Description

Dark olive/black to dull greasy olive (wet) thallus with lumpy isidia at lobe edges; lobes stretched & anastomosing when dry, looking roughly like a bat’s wings; apothecia irregularly shaped with reddish-brown disks & prominent, rough, thalline rims; FIELD ID possible with experience, but dissection may be necessary to distinguish Collema from Leptogium; see Similar Species

Similar Species

Other Collema & Leptogium species appear little like this species, on close inspection

Related Rare Species

None

Habitat

Hardwood forests, on hardwood bark: Quercus, Nyssa

Life History

Corticolous foliose lichenized fungus, photobiont a cyanobacterium in Nostoc

Survey Recommendations

None

Range

Single records from Piedmont & 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.

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.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

25 July 2022