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UltravioletPhotography

Lapeirousia silenoides


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Rørslett, B. 2015. Lapeirousia silenoides (Jacq.)Ker-Gawl. (Iridiaceae). South-African flowers photographed in visible and ultraviolet light. http://www.ultraviol...sia-silenoides/

 

This small colourful plant was found in the Kamiesberg area near Kamieskroon, Northern Cape province, South Africa, 6 September 2015. It occurred on sandy soils in an open fynbos-type vegetation around 1100 m asl.

 

LAPE_SIL_G1509066602_VIS.jpg

Image reference: LAPE_SIL_G1509066602_VIS

 

Visible light: Nikon Df, Voigtländer 125 mm f/2.5 APO-Lanthar lens, daylight.

 

 

LAPE_SIL_I1509062795_UV.jpg

Image reference: LAPE_SIL_I1509062795_UV

 

Ultraviolet light: Nikon D3200, UV-Nikkor 105 mm f/4.5 lens, Baader U2" (Venus) filter (built-in), SB-140 flash.

 

The tepals have UV-dark basal patches and bands of conical cells.

 

 

References:

http://www.ultraviol...-r%C3%B8rslett/

 

[ Published 26 November 2015 ]

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  • 4 months later...

Stunning flower!

 

And interesting. The dark visible patch on the 3 lower petals does not appear in the UV at all.

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