As previously described in this
THREAD, I finally got around to using the Auto-Blend Focus-Stacking tool in Elements XXL2 (loaded as a plug-in in Photoshop Elements 11).
Here are a few of the finished images for your perusal
For each group of the same flower, the magnification factor (i.e. the length of the extension tube between lens and camera) increses from top to bottom.
PURPLE FLOWER (James will know what it's actually called

)
ICKLE FLOWERS (as per comment above!)
PRIMROSE (CALYX):
PRIMROSE:
DAISY: