A good perennial form of Galanthes elwesii. Above the green 'v' shaped mark by the petal sinus there is a very faint green wash. Hardly visible, but it helps with identification.
11th February 2007
References:
Bishop, M., A.Davis and J.Grimshaw. Snowdrops, A monograph on cultivated Galanthus. Griffin Press Publishing ltd. 2001 (reprinted 2006).