Harunobu
Chumono
Another candidate for "White with light purple border" would be "Aikoku". It does have occasional stripes and solids, however.
'Shugetsu' is the white center sport of 'Aikoku'. So in a way, you get 'Shugetsu'-flowers on 'Aikoku'. A good 'Aikoku' still has a good number of white flowers (with maybe a few speckles).