what is a fungi
About fungi. Fungi are important organisms and so distinct from plants and animals that they have been allotted a 'kingdom' of their own in our classifications of life on earth.he lower case 'fungi' is a general word that refers to organisms that all look and act the same, but are not all related. This group is artificial and includes moulds, yeasts, mushrooms, slime moulds, and water moulds (like Phytophthora, the cause of the Irish potato famine and Sudden Oak Death).
Fungi. Fungi can be single celled or very complex multicellular organisms. They are found in just about any habitat but most live on the land, mainly in soil or on plant material rather than in sea or fresh water.he three major groups of fungi are: 1  multicellular filamentous moulds. 2  macroscopic filamentous fungi that form large fruiting bodies. 3  Sometimes the group is referred to as âmushroomsâ, but the mushroom is just the part of the fungus we see above ground which is also known as the fruiting body.