They begin to be formed after the origin of the leaves, but grow much more rapidly than the leaves, and in this way they arch over the young leaves and form protective chambers wherein the parts of the leaf may develop. In the figs, magnolia and pondweeds they are very large and completely envelop the young leaf-bud. [Please select]
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Here and there float upon the surface the round leaves and delicate white blossoms of the frogbit, together with lilies, pondweeds, and water starworts. [Please select]
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_Pondweed habitat:_ A thick growth of pondweeds (Potamogeton spp.) [Please select]
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