page_title: Mycelium
hierarchical_section_title: Mycelium
caption_attribution_description: English: &#160; Mold, growing in a Petri dish from a sample of dust and debris from some repair work in the bathroom of our apartment.&#160; To take this picture, I put the entire Petri dish on the stage of my microscope.&#160; The mold is growing in EasyGel nutrient from Wild Goose Science.&#160; 10&#215; objective, 10&#215; eyepiece.&#160; This image is scaled so that each pixel is a square micron, and the whole image is a square millimeter.
context_page_description: The mycelium is the part of a fungus that is usually underground. It is composed of hyphae, which look like threads, or rootlets. The mat of hyphae may be very thickly woven. The fungus uses it to extract nutritients. The hyphae are usually syncytic, that is, they do not have complete cell walls. Fungal colonies composed of mycelium are found in and on soil and many other natural materials.
  A mycelium may be tiny, forming a colony that is too small to see, or it may be extremely large and cover the floors of a large forest.
  The part of the fungus which is most visible is the reproductive body. This is often, but not always, the stem and hat of the mushroom.
context_section_description: The mycelium is the part of a fungus that is usually underground (or inside some another substance). It is composed of hyphae, which look like threads, or rootlets. The mat of hyphae may be very thickly woven. The fungus uses it to extract nutritients. The hyphae are usually syncytic, that is, they do not have complete cell walls. Fungal colonies composed of mycelium are found in and on soil and many other natural materials.  
  A mycelium may be tiny, forming a colony that is too small to see, or it may be extremely large and cover the floors of a large forest.
  The part of the fungus which is most visible is the reproductive body. This is often, but not always, the stem and hat of the mushroom.
caption: Microscopic view of a mycelium.  This image covers a one-millimeter square
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