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Lepraria caesiella R.C. Harris
Blue-gray Dust
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: Rocky montane forest, Piedmont granitic outcrop
Pale gray-blue aggregate leprose thallus, in scattered clumps of variable size forming larger clumps; rhizohyphae absent; CHEMISTRY: thallus K+ yellow, KC-, C-, PD-/+ weakly yellow, UV- (atranorin, others undetectable with spot tests); FIELD ID not possible; requires thin-layer chromatography to ID with certainty
Other aggregate Lepraria species on rock, bark
None
Rocky montane forest, Piedmont granitic outcrop; on silicious rock (& hardwood bark elsewhere)
Saxicolous leprose lichenized fungus, photobiont a chlorococcoid green alga
None
Southern Blue Ridge, Piedmont
Unknown
Rare
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.
Lendemer, J. C. 2013. A monograph of the crustose members of the genus Lepraria Ach. s. str. (Stereocaulaceae, Lichenized Ascomycetes) in North America north of Mexico. Opuscula Philolichenum 11: 27-141.
Malcolm Hodges
20 April 2022