Carpet method of installation. Carpet tiles are also available, typically square. These are usually only used in commercial settings and are affixed using a special pressure-sensitive glue, which holds them into place while allowing easy removal (in an office environment, for example) or to allow rearrangement in order to spread wear. "Carpet binding" is a term used for any material being applied to the edge of a carpet to make a rug. Carpet binding is usually cotton or nylon, but also comes in many other materials such as leather. Non-synthetic binding is frequently used with bamboo, grass and wool rugs, but
Wildlife of Bermuda swamps. Areas of peat marsh include Devonshire, Pembroke, and Paget marshes. Bermuda has four endemic ferns: Bermuda maidenhair fern ("Adiantum bellum"), Bermuda shield fern ("Goniopteris bermudiana"), Bermuda cave fern ("Ctenitis sloanei") and Governor Laffan's fern ("Diplazium laffanianum"). The latter is extinct in the wild but is grown at Bermuda Botanical Gardens. The endemic flora of the island also include two mosses, ten lichens and forty fungi. Among the many introduced species are the Casuarina ("Casuarina equisetifolia") and Suriname cherry ("Eugenia uniflora"). Bermudiana ("Sisyrinchium bermudiana") Darrell's fleabane ("Erigeron darrellianus") Bermuda campylopus (moss) ("Campylopus bermudianus") Bermuda bean ("Phaseolus lignosus") Bermuda spike rush