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Chara vulgaris, a modern lime-secreting alga, growing in fresh water. An important marl and limestone former.

Chara Vulgaris

Chara vulgaris, a modern lime-secreting alga, growing in fresh water. An important marl and limestone…

Chara vulgaris, a recent calcareous alga (fresh water); sport-vessel with corona. This is frequently found in great numbers in fresh-water limestones, showing their mode of origin.

Chara Vulgaris

Chara vulgaris, a recent calcareous alga (fresh water); sport-vessel with corona. This is frequently…

"Diagram illustrating the gradual filling up of lakes by the encroachment of vegetation, and also the stages in the origin of peat and marl deposits in lakes. The several plant associations of the Bog series, displacing one another, belong to the following major groups: (I) O. W., open water succession; (2) M., marginal succession; (3) S., shore succession; (4) B., bog succession, comprising the bog-meadow (Bm), bog-shrub (Bs) and bog-forest (Bf); and (5) M. F., mesophytic forest succession." -Gager, 1916

Lake and Vegetation

"Diagram illustrating the gradual filling up of lakes by the encroachment of vegetation, and also the…