Day 106: A few weeks ago when hiking in Mt. Rainier National Park, I noticed the barest hint of apothecial "buds" arising on this plate lichen, a common Icmadophila species. Each "button" is comprised of thin tissue which will open at the center top as a single pore. If you look carefully, just to the right of the penny, a couple of "buttons" are beginning to dimple prior to bursting.
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