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- noun Plural form of
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In the rich leaf-mold at the water's verge, and in the cool shade of the standing trees, has begun the growth of the sphagnums, sedges, and various purely aquatic plants.
Its diameter is 40 rods, and it consists of a felt-like mass of peat, three to five feet in depth, covered above by sphagnums and a great variety of aquatic plants.
This is due to the fact that mosses (sphagnums) need little lime for their growth, while the grasses require much; aquatic grasses cannot, therefore, thrive in pure waters, and in waters containing the requisite proportion of lime, grasses and sedges choke out the moss.
But the actual videos of sphagnums in action just became available this week as she and
About the middle of last century it began to be perceived that this view of the matter was somewhat inadequate; the theory then prevailing being that bogs owed their origin not to water alone, but to the destruction of woods, whose remains are found imbedded in them -- a view which held good for another fifty or sixty years, until it was in its turn effectually disposed of by the report of the Bogs Commission in 1810, when it was proved once for all that it was to the growth of sphagnums and other peat-producing mosses they were in the main due -- a view which has never since been called in question.
Their living foliage which often covers the water almost completely for acres, becomes a shelter or support for other more delicate aquatic plants and sphagnums, which, creeping out from the shore, may so develop as to form a floating carpet, whereon the leaves of the neighboring wood, and dust scattered by the wind collect, bearing down the mass, which again increases above, or is reproduced until the water is filled to its bottom with vegetable matter.