Peace Lily ( Spathiphyllum )

I suppose this is an emergency blip of sorts.  There are 60 species of Spathiphyllum and I am afraid I have no idea of which this is.  A number seem to be very similar.

The genus are tropical plants found in "the Americas" ( which I assume means the tropical parts of the confident ) and Asia.  The foliage varies from low (around 30cm) up to man height depending on species.  The spathe, the white bit at the back, is actually a modified leaf.  The flowers are the nobbly structure in the centre.  Each "nobble" is a flower containing both male and female parts.