[click on image to see a larger one]
Closeup including stigma and stamen:

the petal surface:

an finally the glowing stigma:

Doesn't that look like "pure amethyst"?
Impressive how much such a beautiful Christmas Gift may reveal, even if it is invisible to our human eyes...
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos