Big. Really big.
The duo above popped up in my neighbor's lawn overnight. The reason I noticed? I glanced out the kitchen window this morning and spotted it immediately, because it's huge. The cap of the larger one is a good 8" across--the size of a respectable pancake. Of course, I had to run over and get pictures. The little one is huddled underneath as if its bigger mate were a convenient umbrella. Really glad I was able to capture this.