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Hypotrachyna cryptochlora (Vainio) D. Hawksw. & A. Crespo
Dull Powdered Loop
Federal Protection: No US federal protection
State Protection: No Georgia state protection
Global Rank: G2G4
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: Wide variety of forests, woodlands and swamps
Yellow-green to gray thallus of small, adnate lobes, rounded sinuses forming circular gaps between lobes (“loops”); mostly unbranched, short black rhizines on some lobe margins; underside black; tips of lobes breaking down to form broad, mounded soralia with fine soredia; CHEMISTRY: medulla K-, KC+ red, C+ pink, PD-, cortex UV-; FIELD ID: within range, possible with careful examination to determine presence of soralia (& lack of pustules) & a field UV test
Hypotrachyna oprah is also in lowlands but rare & its cortex is UV+ yellow (see key below)
Hypotrachyna croceopustulata, H. oostingii, H. pseudosinuosa
Wide variety of forests, woodlands & swamps, on hardwood bark: Quercus, Acer & others; 1 record on Pinus bark
Corticolous foliose lichenized fungus, photobiont a unicellular green alga (Trebouxia?)
None
Mostly Coastal Plain, with an outlier from upper Piedmont
Unknown
Rare to occasional
None
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.
Lendemer, J. C. & J. L. Allen. 2020. A revision of Hypotrachyna subgenus Parmelinopsis (Parmeliaceae) in eastern North America. Bryologist, 123: 265-332.
Malcolm Hodges
25 March 2022
