Very humid here. We are at the panhandle of Florida. It appears to start off light and then turning brown (maybe absorbing paint from porch). It is on a shelf on a screened-in porch. What is this? The dots on it are condensation. It is like fur or hair.
Can't really see the mushroom... Kinda resembles a shaggy mane (Coprinus comatus) which is said to be edible... http://americanmushrooms.com/edibles5.htm but don't get too adventurous, it also resembles an inky cap which is in the same family group... but I don't think I'd eat them... http://www.mushroomexpert.com/coprinoid.html At my house, I leave them alone...
That's good info! Makes me want to explore more. This just seems like hair, though. Doesn't look like a mushroom. I am hoping to attach a better picture of it with this. It is now dark brown.
Pancake, slime molds don't damage the wood. They are feeding on bacteria and other microbes on the surface of the wood. However, that doesn't mean that there isn't any damage being done by fungi in the wood.