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Sunday, July 14, 2013

Sunday, July 7, 2013

Greater Celandine

Greater Celandine or Tetterwort (Chelidonium majus) is a flower that is used in pharmacy. It contains a yellow to orange latex that shows a weak red fluorescence in ultraviolett light.


Greater Celandine
Tetterwort (Chelidonium majus)

This is a section through a bud in ultraviolet light.

Chelidonium fluorescence

Linked with Macro Monday and Mondaymellowyellows.

Monday, July 1, 2013

Flower and Fluorescein



A somewhat unusual photo of a white rose, a little fluorescein (a color used as marker in ultraviolet light) was added to the water and the flower takes it up. In ultraviolet light, the veins stand out and show their unique pattern. 

Fluorescein experiments flowers
White rose with fluorescein.
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