👉 Echinostelium is a type of fungus that grows on the skin or mucous membranes of some animals, such as humans, producing a thick, sticky substance called exoskeleton. This exoskeleton serves as a protective barrier and helps to prevent water loss through the skin. Echinostelium fungi are also known for their ability to produce exudates, which are white or yellowish-white substances that can be used in medicine.