I took a slice off the one toadstool I have, to include part of the stalk and some of the top. It was awhite colored mass inside sort of like what a cucumber looks like without the seeds. I stick it to a piece of live rock rubble with a hypodermic needle, and it took about a month and a half until it adhered to rock, heaped up and looked like a toadstool again, and its doing just fine.