The microscopic images-- moss?

Hello,
I stumbled upon this forum while looking for information on the rover microscopic images. I have noticed some fibers in the photos and did some searches. I now know what Pele's hair is, for example.
Still I see small plants frquently in the photos, generally mosses and ground covers. I have four years of horticulture under my belt, and some of the microscopic images seem to show mosses. I am looking for comments pro and con on that.
For example, Spirit sol 228 shows outrageous fibers that definitely look like moss.
One more thing: If anyone is thinking about dissuading me from believing that there are artifacts in the photos, you will waste your time. I have seen far too many objects to believe this "It's a rock" nonsense. I am not trying to bring attitude here, but I am merely explaining where I stand. There are artifacts and structures in many of these photos. If you don't think I should believe (or say that) then you may as well use a squirt gun to put out a forest fire.