The content of total phosphorus (sum of the OP and IP) in the lying water and the DGT-P distributed on the surface of the sediment significantly decreased by the vermiculite addition, especially in ...

HAVE any of your readers noticed the rapid evolution of oxygen by a blade of Vallisneria spiralis? If a blade is cut or broken and held under water, the bubbles of gas are rapidly noticed issuing from ...

Robert B. Wylie, The Pollination of Vallisneria Spiralis, Botanical Gazette, Vol. 63, No. 2 (Feb., 1917), pp. 135-145 ...

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