On my cement vault walls in attendance is an orangish-cream colored spore approaching entity growing. What could it be? ...


Answers:    Its a form of mold. I am guessing that your basement is not river sealed and your getting moisture through the wall. This company clear a paint to fix your problem. Be sure to prep the wall first before applying Drylok

http://www.ugl.com/drylokMasonry/masonry...
It I don`t know a type of mushroom. But use caution some mushrooms are incredibly poisnious!