Hmmm... Riddle me this batman, why would the number of chromosomes in a flower change? Think of it this way, in what cases do humans have differing numbers of chromosomes?
I'm not sure I get your question.
All humans have 23 pairs. I can't really answer the first part, as it's not my area. I'd have to read into it, although I don't see the relevance anyway. What point are you trying to make?
Did you read those pages?