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Pinus abies, spruce fir. Taxus baccata, yew. Nuphar luteum, yellow water-lily. Ceratophyllum demersum, hornwort. Potamogeton, pondweed. Prunus spinosus, common sloe. Menyanthes trifoliata, buckbean. Nymphaea alba, white water-lily. Alnus, alder. Quercus, oak. Betula, birch.
Inferior or attached valve. Pecten Beaveri, Sowerby. Reduced to one-third diameter. Lower white chalk and chalk marl. Lima spinosa, Sowerby. Syn. Spondylus spinosus. Ostrea vesicularis. Syn. Gryphaea convexa. Inoceramus Lamarckii. Syn. Catillus Lamarckii. Radiolites Mortoni. Mantell. Houghton, Sussex. White chalk. Diameter one-seventh natural size. The upper or opercular valve is wanting.
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