Oyster Mushrooms almost always grow on dead wood in shelf-like clusters around the cooler months of spring and fall.

King boletes (or porcini) are one of the tastiest mushrooms and grow late spring through fall. Boletes don't have gills, but a spongy surface of spores.

Lobster mushrooms aren't a mushroom at all but a parasitic mold that attacks a host mushroom. They have a hard red to orange exterior, thus resembling a lobster. 

Found in the spring, morel mushrooms are prized by foragers. They have a pitted and deeply ridged, honeycomb like cap, and are completely hollow when cut in half.