Sacha writes
I really cannot be doing with these tiresome people who can spend 3
hours arguing about the length of stamens in order to support their
theory that a plant belongs to one genus or another altogether!

I'd agree with you is it was all about just tidying species into
convenient boxes. But since the overall aim is to reflect the
evolutionary tree, it's good that there are people willing to go into
this in whatever level of detail is necessary to get to as near the
truth as is possible.
--
Kay