Mosses, the bryophytes are one of the most important bioindicators and play many complex ecological roles in aquatic and terrestrial ecosystem. Though they are most abundant in moist habitats but can also exploit many different environments from grasslands to deserts. They shelter several microorganisms as diverse as bacteria, protozoan, tardigrades, nematodes etc. in biocoenoses that are relatively isolated from surrounding habitats. But till date comparatively very little study has been carried out on this interesting ecosystem throughout the world including Asian countries, India. Due to...