foliose lichen apothecia by microscope. scurfy greenery background. symbiotic organism of cyanobacteria among filaments fungi

algae among apothecia apothecium arises background bark biology botany closeup composite crustose cultivation cyanobacteria drippy filam filaments flora foliose forest from fruticose fungi green greenery growth lichen lichenes lichens living macro matte microcosm microscope microscopic moist multiple nature organism plant recesses relationship research round science scurf scurfy symbiosis symbiotic texture wildlife wood young