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Pyrenula leucostoma Ach.
Eyed Pox
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 High Priority Species (SGCN): No
Element Occurrences (EOs) in Georgia: 0
Habitat Summary for element in Georgia: Mesic hardwood forests and swamps
Variable dark-green to gray, smooth thallus (possibly varying from sunny to shady habitats, respectively) with solitary perithecia, black but with a thalline covering exposing only a pale-ringed black ostiole at apices; on gray thalli, upper sides of perithecial warts are often paler, giving thalli a satiny look; MICROSCOPY: spores brown, large & muriform, 45-60 x 16-22 µm, cells large, 8 x 2-6 with usually only 4 in the widest rows; ; FIELD ID: dissection recommended
Pyrenula punctella is similar to the gray form, but has more black exposed at perithecial summits & 4-celled spores; P. mucosa has black warts, & its muriform spores have smaller cells, up to 10 in widest rows; P. thelomorpha has smaller spores, but be wary of weak or poorly developed P. leucostoma
None
Mesic hardwood forests & swamps, on hardwood bark: 34% Acer, 19% Carpinus, 9% Quercus, 8% Carya, 8% Ilex & 22% other hardwoods or unknowns; note the prevalence of smooth-barked trees & shrubs
Corticolous crustose lichenized fungus, photobiont an alga in Trentepohlia
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. 1995. More Florida lichens including the 10-cent tour of the pyrenolichens. Unpublished manuscript, Bronx, N.Y.
Malcolm Hodges
5 August 2022
