I located some moss plants growing in a shady corner of my garden. On foldscoping, I could make out these were moss protonema (i.e. juvenile moss plants).
On germination spores of mosses form green filamentous leafy structures that usually lak midrib. These are called Primary protonema . These then give way to slightly big leafy structures called Secondary protonema which are attached to the soil by means of rhizoids.
This is what I had learnt in my Botany class, so was thrilled to see it in my slide.
Above are pics of Primary Protonema and a filamentous leaf of the same
Secondary Protonema and its leaf under foldscope
Capsule -like structures seen arising from the young plants