Synonyms: Caloplaca flavovirescens (Wulfen) Dalla Torre & Sarnth.
Gyalolechia flavovirescens is a small crustose lichen that is inconspicuous in spite of its bright
coloration. The thallus is sulphur yellow. The apothecia are orange with an orange rim and sometimes a rim
of yellow thallus bordering that. The thallus and the apothecia are purple in KOH. The spores are 2-celled
and polarilocular-- meaning that the cell cavities are pushed to the ends with a thickened septum. Gyalolechia flavovirescens
is found on rocks.
Please click on an image for a larger file.
Gyalolechia flavovirescens, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
Gyalolechia flavovirescens, closeup, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
Gyalolechia flavovirescens, photomicrograph of thallus and apothecia, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
Gyalolechia flavovirescens, high power photomicrograph of thallus and apothecium, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
Gyalolechia flavovirescens, high power photomicrograph of thallus and apothecium, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
Gyalolechia flavovirescens, photomicrograph of apothecium purple in KOH, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
Gyalolechia flavovirescens, photomicrograph of polarilocular spores in ascus, photo Russ Kleinman & Karen Blisard, Gila NF, McMillan Cmpgd trail, September 25, 2024
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