Pinhook Bog nutrient-poor. The outstanding feature of Pinhook Bog is the tree-covered mat of sphagnum moss. Sphagnum moss is a stringy, delicate moss of a light-green color. The mat floats on top of the water and can become thick, yet it can have a pocket only a few inches thick in the middle. As the mat thickens, larger and larger plants take root and grow. Under the mat a peat bed develops. The acidic water slows the decay of the sphagnum moss and other plants. With time, the peat may fill the bog from the mat to the bottom. As the moisture
Sphagnum palustre light brown with stem diameters of 0.6 to 1.2 millimeters. The epidermis (Hyalodermis) of the stem is built in three layers and their cells form 1 to 3 seldom more pores and contain much spiral fibers. The branches are tufted forming clusters of three to six on the little stems. The heads are a little more pigmented and egg-shaped. "Sphagnum palustre" plants are spread across the whole of Europe and also can be found in parts of America, Australia and New Zealand. It is comparatively frequent and grows on moist and wet habitats like wet forests, often coniferous forests, on