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Buellia spuria (Schaerer) Anzi
Sunken Rock Buttons
Federal Protection: No US federal protection
State Protection: No Georgia state protection
Global Rank: G3G5
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: Massive outcrops, boulders
Whitish to gray, rimose thallus with black apothecia; disks either superficial or imbedded in thallus, but if the latter, generally located along cracks rather than in the center of polygonal areoles; disk rims sometimes frosted gray, especially when young; MICROSCOPY: spores brown, 2-celled; CHEMISTRY: thallus/medulla K+ yellow (stictic acid complex), UV-; FIELD ID is possible, with experience separating from Lecanora, Lecidella & other Buellia (see distinctions below)
Buellia maculata thallus is not areolate, & is K+ red; B. mamillana is UV+ orange; Lecidella stigmatea has a lumpy thallus with more sessile disks, & different spores; Lecanora oreinoides is whiter, disk rims are usually invisible, disks always immersed & centered (away from edges of areoles)
Buellia circumpallida
Massive outcrops, boulders on silicious rock
Saxicolous crustose lichenized fungus, photobiont a green unicellular alga in Trebouxia
None
Statewide
Unknown
Common
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.
Harris, R. C. & D. Ladd. 2005. Preliminary draft: Ozark lichens. Unpublished manuscript, New York Botanical Garden, Bronx, NY.
Malcolm Hodges
6 March 2022