Allotments 4 All

I have this tree in my garden.  Flowers its socks off every May so I call it Snow in May.  Lovely tree attacts the bees, (smells awful).  It has lovely dark green shiny leaves.  Does anyone know what it is really called.

is it this?
http://images.google.co.uk/imgres?imgurl=http://www.floralimages.co.uk/images/crataegus_monogyna_16f6.jpg&imgrefurl=http://www.floralimages.co.uk/pcratamonog.htm&usg=__VoLNgXKY18EjPb0LtIH_DJkgttk=&h=375&w=500&sz=53&hl=en&start=6&um=1&tbnid=CLKlMlI395YJIM:&tbnh=98&tbnw=130&prev=/images%3Fq%3DCrataegus%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-GB:official%26sa%3DG%26um%3D1

Quote from: Hector on May 30, 2009, 21:48:32
is it this?
http://images.google.co.uk/imgres?imgurl=http://www.floralimages.co.uk/images/crataegus_monogyna_16f6.jpg&imgrefurl=http://www.floralimages.co.uk/pcratamonog.htm&usg=__VoLNgXKY18EjPb0LtIH_DJkgttk=&h=375&w=500&sz=53&hl=en&start=6&um=1&tbnid=CLKlMlI395YJIM:&tbnh=98&tbnw=130&prev=/images%3Fq%3DCrataegus%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-GB:official%26sa%3DG%26um%3D1

that's a bit of a mouthful. Does it have a common name?

The link is to a hawthorn.  I agree the flowers are similar though much much bigger but the leaves  of my tree are straight like apple leaves and much darker.  Does not have thorns, though there is a slight spuring on the branches.  May be a cross between a white beam and a hawthorn.  Someone once suggested it was a False Service Tree. 

It might be this one.  It even mentions the unpleasant smell of the flowers.
http://en.wikipedia.org/wiki/Crataegus_crus-galli

Seems there are loads of different Hawthorns.

There is one called splenda/splendens?? that has more elongated leaves like yours.

Managed to find a May tree still in flower.   Hawthorn - Crataegus Monogyna.  High up on the Cotswolds.
Here it has stopped flowering a couple of weeks ago. 
So my tree flowers about three weeks later.
You can see the difference in the leaves and the size of the flowers.
Though obviously they are related.