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Keywords from Image Description:
The Quarterly journal of the Geological Society of London . AT SAINT CROSS SOUTH ELMHAM IN SUFFOLK Aim is glutinosa Ceratophyllum demersum Alisma plantago Potainogeton heterophyllus Schreb perfoliatus crispus obtusifolius Mert Koch trichoides Cham Zannichellia palustris Scirpus pauciflorus Light Cfflspitosus fluitans lacustris