Ornithogalum umbellatum [Star-of-Bethlehem]

[Nico]

Chalwatzis, N. 2013: Ornithogalum umbellatum L. (Hyacinthaceae). Star-of-Bethlehem. Flowers photographed in visible and ultraviolet light, and simulated bee-colours.

 

Ornithogalum umbellatum L.

Syn. Ornithogalum garganicum Ten.

DE: Doldenmilchstern, Stern von Bethlehem

EN: Star-of-Bethlehem, Grass Lily

 

This genus is sometimes placed in the Liliaceae.

May, 18^th, 2013, near Bensheim Germany in a wine-yard (wildflower).

 

O. umbellatum shows a UV signature with a very strong reflexion across the petals.

Images taken with a broadband modified Panasonic Lumix G1 and the EL-Nikkor 80mm/f5.6 at f8.

 

Visible light image with IR Neutralisation-filter NG, 1/640s, ISO 100

Image reference: NCH_P1080437130518

 

UV image taken with the Baader U-Filter 2”, 1/3s, ISO 400 (sunlight)

Image reference: NCH_P1080443130518

 

Composite image (simulated bee colours), black and white conversion of the UV-image combined with the blue and green channel of the visible image.

Image reference: NCH_P1080458_RGB_UV_bw130520

 

[Published 21 May 2013]