Christmas rose in UV light. Coloured photograph of a Christmas rose (Helleborus niger) flower showing areas that reflect (pale areas) or absorb (dark areas) ultraviolet (UV) light. This flower has sepals (large outer petal-like structures) with high UV reflectance,and nectaria (modified petals,centre) and stamens (male sex organs,centre) with high UV absorption. This pattern,known as a 'nectar guide',is thought to attract pollinating insects,which can see in UV light. This image was taken on a digital camera adapted to filter and detect UV light. The resulting monochrome image was coloured on a computer. UV light is invisible to humans and does not have a true colour. See image B814/1644 for normal daylight version | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Rorslett, Bjorn |
Bildgröße: | 3880 px × 2608 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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