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UltravioletPhotography

Evolvulus x hybrida 'Blue My Mind' [Dwarf Morning Glory]


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Blum, A.G. (2016) Evolvulus L. x hybrida 'Blue My Mind' PP24447 P2 (Convolvulaceae) Dwarf Morning Glory. Flowers photographed in ultraviolet, visible and infrared light. http://www.ultraviol...-morning-glory/

 

Middletown, New Jersey, USA

23 June 2016

Cultivar in home garden

 

Comment:

The small, vivid blue flowers on this mounding, non-vining plant open in the morning and close up later in the day like their larger cousins in the Convolvulaceae family. Hybrid varieties have become very popular garden bedding plants in the US.

In UV, the white throat and stamens become black. The blue petals are somewhat UV-absorbing and show some darker veining and also some iridescence.

 

Reference:

1. Missouri Botanical Garden (June 2016) Evolvulus glomeratus. http://www.missourib...kempercode=a121

 

 

Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]

 

In these photographs, some sandy dirt from a recent rain clings to the leaves.

 

Visible Light [f/11 for 1/50" @ ISO-200 in Sunlight with Baader UVIR-Block Filter]

evolvulusBlueMyMindHybrid_visSun_20160623wf_46549pn01.jpg

 

 

Ultraviolet Light [f/11 for 1.3" @ ISO-200 in Sunlight with BaaderU UV-Pass Filter]

evolvulusBlueMyMindHybrid_uvBaadSun_20160623wf_4665101.jpg

 

 

Ultraviolet Light [f/11 for 2.5" @ ISO-200 in Sunlight with AndreaU UV-Pass Filter]

evolvulusBlueMyMindHybrid_uvAndreaSun_20160623wf_4659701.jpg

 

 

Infrared Light [f/11 for 1/80" @ ISO-200 in Sunlight with B+W 092 IR-Pass Filter]

evolvulusBlueMyMindHybrid_092IrSun_20160623wf_46570pn01.jpg

 

 

Infrared Light [f/11 for 1/160" @ ISO-200 in Sunlight with B+W 093 IR-Pass Filter]

evolvulusBlueMyMindHybrid_093IrSun_20160623wf_46559pn01.jpg

 

 

Infrared Light [f/11 for 1/80" @ ISO-200 in Sunlight with BG3 IR+Blue Filter]

evolvulusBlueMyMindHybrid_bg3Sun_20160623wf_46590pn01.jpg

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A nice documentation of this flower. The "spots" seen in IR I first interpreted as fungal until the visible shot indicated they are merely soil particles.

 

Thus, all bands contribute to the overall understanding.

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I had a lot of trouble with the visible blue of this flower. The camera did not seem to be able to record the saturation level. I suspect the iridescence of the petals had something to do with that.

 

As photographed (with colour profiling): too light.

evolvulusBlueMyMindHybrid_visSun_20160623wf_46549pnPetalCrop1.jpg

 

Blue made darker: not vibrant enough.

evolvulusBlueMyMindHybrid_visSun_20160623wf_46549pnPetalCrop2BlueDarker.jpg

 

Blue made darker and more saturated: best matches the actual flower.

evolvulusBlueMyMindHybrid_visSun_20160623wf_46549pnPetalCrop3BlueDarkerSat.jpg

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