Multiple choice Fungi differ from other non-green thalophytes in possessing a thallus known as _______. hyphae hapsule mycelium chitin Reveal answer Fill a bubble to check yourself C Correct answer Explanation The vegetative body of a fungus, consisting of a mass of branching, thread-like hyphae, is called the mycelium. Chitin is the material that makes up the cell wall, not the name of the thallus itself.