Fungi is a large family of cryptogamous life form, neither animal nor plant, but a separate classification. Fungi agree with algae and lichens in their cellular structure, which is, with few exceptions, devoid of anything resembling vascular tissue; but differing from them in deriving their nutrition from the body on which the grow, not from the medium by which they are surrounded. Fungi are distinct from plants in not containing any cellulose in their structure; all plants contain cellulose in their cells. Research Fungi