Jasminum nudiflorum (Winter jasmine flower) [UV]

Jasminum nudiflorum (Winter jasmine flower) [UV]

Description

Title:
Jasminum nudiflorum (Winter jasmine flower) [UV]
Caption / Description:

Ultraviolet photograph of a Winter jasmine (Jasminum nudiflorum) flower growing near the end of the stem, with two flower buds yet to open below it.

The flower has a dark marking around the centre visible in ultraviolet, which is not present in visible light. This is commonly known as a 'nectar guide', as it is thought that it helps guide bees and other insects (which can see ultraviolet light) to the centre of the flower where the nectar and pollen are located.

The sepals and stem appear darker in comparison to the petals in ultraviolet than they do in visible light.

Although native to China, the plant has been cultivated and is grown throughout the world. It flowers from November to March, one of the few plants that flower over the winter.

Tags / Keywords:
  • Biota
  • Life
  • Vitae
  • Eukaryota
  • Plantae
  • Plants
  • Magnoliophyta
  • Flowering Plants
  • Angiosperms
  • Magnoliopsida
  • Dicotyledons
  • Lamiales
  • Oleaceae
  • Olives
  • Jasminum
  • Jasmine
  • Ultraviolet
  • UV Photography
  • Nectar guide
  • Jasminum nudiflorum
  • Winter jasmine

Admin

Date Original Photo Taken:
Original File Name:
_DIR0551a.psd
Event:
Rating:
☆
Date this image added/last updated on website:
Original File Dimensions:
4256px x 2848px
File Type:
JPEG
Color Mode:
Original Image Color Profile:
Adobe RGB (1998)

Location

Location Created:
Sublocation:
City:
Market Harborough
Province/State:
Leicestershire
Country:
United Kingdom
World Region:
Europe
Geo-location:

Rights

Copyright Status:
Copyrighted
Licensing Status:
Rights Managed
Available for Editorial Use:
Yes
Available for Commercial Use:
Yes
Copyright Notice:
© 2014 Dave Kennard

Camera Data

Date Digital Resource was created:
Shutter speed:
1⁄125 s
Aperture:
f/5.6
Camera Model:
Fujifilm IS Pro
ISO:
100
Exposure Compensation:
0
Focal Length:
75mm
Focal Length (35mm equiv.):
118mm
Metering Mode:
Spot
Flash:
Off, Did not fire
Exposure Mode:
Manual
White Balance:
Auto
Light Source:
Unknown
Exposure Program:
Manual

Additional shooting metadata

Lens:
Nikon EL-Nikkor 75mm F4 N
Filters used:
  • Baader U
Additional Optics used:
  • Kenko DG Extension Tubes 20mm
  • 17mm-31mm M42 Focusing helicoid
Setup:
Cut piece photographed indoors, held by plamp. Hand coloured paper / card background placed behind flower.
Lighting provided by 2x full spectrum modified Vivitar 283 flashes held near flower.

Post Processing

Image Modified:
Software used:
  • Adobe Camera RAW
  • Adobe Photoshop 14
Post Processing:

Channel mixer used to modify colour in PS CC