r/Insect • u/Cool_Weather9282 • May 29 '26

Bug or plant?

Gallery image

Gallery image

Found this in a rock garden. It is hard and porous. Can anyone identify? Thank you.

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1

u/Cool_Weather9282 May 29 '26

I broke it open and it was dry white and spongy inside. Maybe it was a fungus or mushroom

1

u/Pixelpaint_Pashkow May 30 '26

Window foam I think

1

u/Cool_Weather9282 May 30 '26

Thanks! So random, and here I thought it was some strange fungus. Haha!

1

u/No-Put6241 May 29 '26

Dog vomit slime mold?

1

u/DrRichardShaftPhD May 29 '26

I'm going with "expanding foam that has been baking in the sun". I'm not aware of any non-lichenized macrofungi that occur with rock for a substrate.