I have found two trees which seem to be 'two trees in one ' - branches from high up the main trunk carry white flowers but there are lower branches with the pink chrysanthymum type blossom - is this a result of grafting? Do I just identify these trees as Japanese Cherry? Help please.
Absolutely right, trekmum. These are Japanese cherries grafted onto wild cherry stocks. At some point, the stocks have broken out, producing these odd 'two-in-one' trees which are quite spectacular in their way. Many cultivated trees (not just cherries) are grafted onto stronger growing stocks, often of native species..
Please record them as Japanese cherries since that is what they were intended to be when planted.