shore lichen xanthoria parietina - yellow-green lichen on the bark of an old tree in the garden, ukraine

xanthoria parietina lichen fungi ascomycota lecanoromycetes teloschistales teloschistaceae foliose thallus apothecia rhizines parietin symbiosis ascospores photosynthesis tree crustose maritime ecology biodiversity epiphyte photobiont yellow coastal terrestrial sunlight rural moss mycology spore reproduction bioindicator taxonomy taxonomyid conservation environment nature shore sunburst common orange scale polessica thick branches forest old branch polycauliona