Thanks, Dunlin, I was beginning to give up hope
http://www.wildaboutbritain.co.uk/fo...lies/smile.gif
Looks like you may be right as I've Google'ed it and came up with
Japanese Walnut - Juglans ailantifolia dkimages - discover - plants - Juglans ailantifolia (Japanese Walnut)
It's puzzling that they say leaves should reach 90 cm, which is huge - largest on this fairly young tree is about 25 cm.