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Phaeophyscia rubropulchra (Degel.) Moberg
Orange-cored Shadow
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: Woodlands, hardwood forests and swamps
Deep green, brown or gray-green thallus, lobes 0.5-1 mm wide, fringed with black, white-tipped cilia & rhizines; marginal soralia of green soredia; thin medulla reddish to orange, lower cortex black; CHEMISTRY: cortex K-; FIELD ID easy if orange medulla is visible due to scarring of thallus, taking care to note thallus is also sorediate
No other Phaeophyscia has soralia & orange-red medulla; rare P. endococcinodes is fertile, not sorediate
None
Woodlands, hardwood forests & swamps; substrates: hardwood bark: 18% Quercus, 12% Acer, 6% Carpinus, 6% Carya & 33% other hardwoods; conifer bark: 6 records on Juniperus, 1 on Taxodium; 5 records on moss over bark or rock; 15% on silicious rocks & 3 records on calcareous rock
Corticolous/saxicolous foliose lichenized fungus, photobiont a green alga (Trebouxia?)
None
Statewide, thinnest in lower Coastal Plain
Unknown
Common to abundant
None
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.
Malcolm Hodges
3 August 2022