Are these 3 Acer platanoides cultivars actually the same tree?
 

I saw a specimen of Acer platanoides 'Palmatifidum' today at The Royal Botanic Gardens Edinburgh and immediately fell in love with the leaf shape, however after looking it up online and in the limited selection of books I own it appears to be somewhat identical to A. plantanoides 'Dissectum' and also A. platanoides 'Lorbergii' is this the case? or are they all separate cultivars in there own right?

Thanks in advance!

Carl