Moss (seed plants and pteridophytes), where the diploid sporophyte generation is dominant. Mosses are now classified on their own as the division Bryophyta. There are approximately 12,000 species. The main commercial significance of mosses is as the main constituent of peat (mostly the genus "Sphagnum"), although they are also used for decorative purposes, such as in gardens and in the florist trade. Traditional uses of mosses included as insulation and for the ability to absorb liquids up to 20 times their weight. Botanically, mosses are non-vascular plants in the land plant division Bryophyta. They are small (a few centimeters tall) herbaceous
Lough Derravaragh south of this raised bog. Much of the high bog possesses vegetation typical of an Irish Midland raised bog, with such species as ling heather ("Calluna vulgaris") and hare's tail cottongrass ("Eriophorum vaginatum"). The hummock-forming bog moss, "Sphagnum papillosum" has been recorded situated around one third of the high bog as has the more scarce "Sphagnum imbricatum". Overall, sphagnum covers around one-third of the high bog area. The centre of the bog is wet with stagnant water in places. The aquatic bog moss "Sphagnum cuspidatum" has been recorded in the hollows of the bog. There are dried-out channels of the