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Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G5

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: Montane mixed forests

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Description

Yellow-green to gray thallus of small lobes, rounded sinuses forming circular gaps between lobes (“loops”); lobe sides curling down, becoming more tubular than flat (revolute), & sometimes arching away from substrate; mostly unbranched, short black rhizines on some lobe margins; underside black; tips of lobes breaking down to form broad, flat soralia with fine soredia; CHEMISTRY: medulla K-, KC+ red, C+ pink, PD-, thallus UV-; FIELD ID: possible with experience, but best confirmed with chemical tests

Similar Species

2 other montane sorediate Hypotrachyna have adnate thalli & are chemically different: H. pseudosinuosa is KC+ pink, C-, P+ red; & H. lividescens is C+ red (see key below)

Related Rare Species

Hypotrachyna croceopustulata, H. cryptochlora, H. oostingii, H. pseudosinuosa

Habitat

Montane mixed forests; substrates: 4 records on Pinus bark, 1 on Acer, 1 on Tsuga, & 5 on unknown fallen twigs

Life History

Corticolous foliose lichenized fungus, photobiont a unicellular green alga (Trebouxia?)

Survey Recommendations

None

Range

Southern Blue Ridge

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.

Tripp, E. A. & J. C. Lendemer. 2020. Field guide to the lichens of Great Smoky Mountains National Park. The University of Tennessee Press, Knoxville.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

28 March 2022