File:Cactus-flower-possibly-Mammillaria-elongata-vis-uv-ir-comparison.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (350 × 700 pixels, file size: 62 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English: Comparison image of the flower of a small cactus (possibly a Mammillaria elongata cultivar) photographed in visible light (top), ultraviolet light (middle), and infrared light (bottom).

In visible light the flower has light yellow coloured petals, with light yellow stamens clustered in the centre. The cactus stem is dark green, but is covered with white spines. Around the top of this larger stem bearing the flower are also some longer brown spines.

The flower's appearance in ultraviolet is quite different to that in visible light. The petals appear much darker, making the flower stand out from the white spines covering the cactus. The anthers and pollen also appear much darker in UV. The rest of the cactus appears quite similar to how it appears in visible light, with a dark stem covered in light spines and some darker spines around the flower.

In infrared the cactus and flower appear much the same as they do in visible light, with the exception of the stem. The stem appears much brighter in infrared.
Date
Source Own work
Author Dave Kennard
Permission
(Reusing this file)		 Image licensed CC-BY-SA 3.0 Please credit image to David Kennard / www.davidkennardphotography.com

Licensing

[edit]

Please credit image to David Kennard / www.davidkennardphotography.com

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current21:25, 28 February 2014Thumbnail for version as of 21:25, 28 February 2014350 × 700 (62 KB)Dave Kennard (talk | contribs){{Information |Description ={{en|1=Comparison image of the flower of a small cactus (possibly a Mammillaria elongata cultivar) photographed in visible light (top), ultraviolet light (middle), and infrared light (bottom). In visible light the flower...

You cannot overwrite this file.

The following page uses this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Cactus-flower-possibly-Mammillaria-elongata-vis-uv-ir-comparison.jpg&oldid=845191181"