Key to the Ecological Roles of Fungi<< Start Over
What's under the cap?
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Choose this category if you aren't sure, the underside is smooth-ish, or if it's difficult to tell what's going on under there.


Little holes that make a surface somewhat like a sponge.


Ground-dwelling mushrooms in this category are Mutualists with nearby trees, especially oaks and pines. They may be members of the genera Sarcodon, Hydnum, or Hydnellum.

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