This moss is growing on a tree and each tiny clump of moss of about 1/2" in diameter is made up of dozens of these stalks with almost transparent 'leaves' on them as you see here. These are about 1 cell thick, as I only just discovered on researching this a moment ago. They are completely invisible to the naked eye.
Menisci on a leaf after rain today. I’ve been really busy in the photo studio working for clients as well as in the workshop (for more clients) and have had very little time for personal fun, unfortunately. I shot this on MP-E 65mm lens at approximately 1.5x magnification.