A fern rhizome is a type if plant I'm extremely interested in. As a biological PHD holder and Nobel Prize winner, not many things interest me, but the cells of a fern rhizome definitely do. Here is a 340X zoom by the foldscopes kit. It is very cool and very nice and I am a very verifiable and credible source, because I definitely won a Nobel Prize and have a PHD. Also foldscopes is nice, buy one