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.
Best Answer: Actually, a mushroom is a fungus. Scientists used to think that mushrooms and other fungi (plural of fungus) were plants. Now they know that fungi are very different from plants.Fungi get their food in a different way than plants.They also reproduce differently from plants.ungi are now considered a completely different form of life. A mushroom is the visible part of the fungus. Mushrooms are where some fungi make spores. A spore is like a tiny seed that can grow into a whole new fungus.