How is release of spores is controlled in mosses?
Anything that is different about mosses is the fact that they LOOK like they have tiny little leaves on small upright stem-like structures. However, since these leaf- and stem-like structures contain no vascular tissue, then they are not called leaves or stems (we jsut use the therm THALLUS which describes their vegetative body). The thallus of the moss is only 1 or 2 cells thick so no water conducting tissue is needed. When it comes time to release their spores, they produce little capsules on top of the long stalks that, when it becomes dry enough, burst open and release the spores into the breeze. Hope this helps.
