foliose lichen on farm fencing

algae arises bark bucoliomposite cooperation cooperative cortex countrified country countryside cyanobacteria depth farm fence fencing field filaments foliose fungi fungus grain hyphae interdependent landscape leaf lichen lichens living lumber medulla multiple mutualistic nature organism organisms outdoors outside pastoral photosynthesis plank relationship rural rustic science scientific shallow structure symbiotic synergetic thallus that timber wood wooden