Spores

For some people moss is a green plague. For other people moss is of unprecedented beauty. The Netherlands has more than 600 species of moss. There is even a real red list of rare and endangered moss species. Moss is a spore plant. The sporangium grows into a thickening in which the spores are located. As soon as the spores are ripe, the thickening will lose its cap and the spores can be transported by the wind.

On the first image taken with a stereo microscope, some peristomes with teeth can clearly be seen on top of the sporangium or spore capsule. The peristome is a specialized structure in the sporangium that allows for gradual spore discharge by unfolding its teeth. 

The second image shows that all spores have left the capsule. Sometimes it looks like moss is in bloom, like on the photo below, but moss does not bloom. What you see are not flowers, but spore capsules raised above the moss cushion.