1 Iritis is uncommon, but can be due to trauma, infections, or autoimmune conditions. Symptoms include pain, red eye, and often, decreased vision.  Optic neuritis. The nerve travelling from the back of the eyeball into the brain can become inflamed.
Oak root fungus, or white rot, is a widespread disease that becomes visible just beneath the bark and on roots. What looks like layers of light brown to tan mushrooms form in clusters at the base of the trees.
It is a hidden kingdom. The part of the fungus that we see is only the fruit of the organism. The living body of the fungus is a mycelium made out of a web of tiny filaments called hyphae.The mycelium is usually hidden in the soil, in wood, or another food source. A mycelium may fill a single ant, or cover many acres. The branching hyphae can add over a half mile (1 km) of total length to the mycelium each day.t is a hidden kingdom. The part of the fungus that we see is only the fruit of the organism. The living body of the fungus is a mycelium made out of a web of tiny filaments called hyphae.