It's a very nice plant and flower! However, if you can't trace it's history back to the actual Neville clone, then you can't give it that name. There are other Nitidissimums out there. There must also be 'Neville' x self too. You have no way of knowing if it's a division, a seedling; or completely unrelated. Unfortunately, to put the clonal name 'Neville' on it now would be blatantly dishonest. If the name label only says Nitidissimum and there is no clonal name, then, you can only assume that it is a genetically unique clone and not related to Neville.