New Norfolk Tetrad record

On Sunday last I led a walk with Branch Y of the Wild flower society to Bath Hills at Ditchingham. Whilst at lunch in the garden with the estate owner she gave me a plant found in her orchard. It was immediatly identified as Ophioglossum vulgatum. Adders Tongue Fern. In the evening whilst checking the Norfolk Flora (Bull etal)I found that the plant is new to this tetrad and is quite distant from any other records.