These two objects that look like moldy zucchini bread are actually blocks of sawdust infected with Lentinula edodes - the Shiitake mushroom:
The blocks fist turn fuzzy white, then develop a hard, brown crust. Once this happens, the mushrooms begin to form under the crust, then break through. Here's one breaking through the crust (the white star-ish shape in the middle):
And here's one that has "popped":
In a day or two this will be easily recognized as a mushroom.
The blocks fist turn fuzzy white, then develop a hard, brown crust. Once this happens, the mushrooms begin to form under the crust, then break through. Here's one breaking through the crust (the white star-ish shape in the middle):
And here's one that has "popped":
In a day or two this will be easily recognized as a mushroom.