Collection location: Charles Sprague Wayside, Tillamook Co., Oregon, USA [Click for map]
These puffballs were growing directly from a well-rotting Bigleaf maple trunk which was still alive, but barely. The puffballs formed a cluster near the bottom portion of the trunk. There is a distinctive, pinched basal stem area, and the peridium looks pinkish, with myriad cracks showing white underneath. The gleba, however, is dark brown and produces quantities of spores with each raindrop. I see no indications of spines or ornamentation on the peridium. One photo is of the back of the bark section the puffballs were growing on, showing the strong, ropey rhizomorphs which attached the puffball to the trunk.
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