The integrated mycelium

The terms fungal colony and fungal mycelium is used in the literature, often for the same things. If one look up these terms in the Dictionary of Fungi they are defined as. 

Colony = either the coherent mycelium or a mass of cells of one origin. 

These two terms are really a mixture of concepts one of the origin and one of the structures. None of these terms addresses the function of the mycelium or what could constitute an individual organism. Therefore two other terms have been introduced to better describe the reality. 

Genetically identical hyphae occupying a continuous space = The Genetic Mycelium Unit (GMU) 

The network of functionally integrated hyphae that forms an individualistic organism = The Functional Mycelium Unit (FMU). 

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