File:An alga (Trentepohlia) on a tree - geograph.org.uk - 933290.jpg
Size of this preview: 450 × 600 pixels. Other resolutions: 180 × 240 pixels | 480 × 640 pixels.
Original file (480 × 640 pixels, file size: 118 KB, MIME type: image/jpeg)
Captions
Captions
Add a one-line explanation of what this file represents
Summary edit
_on_a_tree_-_geograph.org.uk_-_933290.jpg&action=edit§ion=1){kind=link}
| Description |
English: An alga (Trentepohlia) on a tree. Algae of the genus Trentepohlia are commonly found on trees and on rocks. There are several British species; for a very informative discussion, see Dr Alan J. Silverside's page on this topic: http://www.bioref.lastdragon.org/Chlorophyta/Trentepohlia.html
Examined through a hand-lens, this orange covering can be seen to be made up of minute fluffy orange-yellow balls (rather like tiny pom-poms); compare: 1232858. By classification, this is one of the Green Algae, and it has green chlorophyll; that underlying colour is simply masked by the presence of large amounts of orange pigments (carotenoids). Trentepohlia also occurs within many lichens. A lichen is an association of a fungus with at least one other species that performs photosynthesis: in about 60% of lichen species, the latter role is filled by unicellular green algae; in about 30%, by Trentepohlia algae; and in about 10%, by cyanobacteria (such as Nostoc – https://www.geograph.org.uk/photo/1470400 ). |
| Date | |
| Source | From geograph.org.uk |
| Author | Lairich Rig |
| Attribution (required by the license) | Lairich Rig / An alga (Trentepohlia) on a tree / |
_on_rock_-_geograph.org.uk_-_1232858.jpg){kind=link}
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
|---|
_on_a_tree_-_geograph.org.uk_-_933290.jpg¶ms=056.011080_N_-003.889100_E_globe:Earth_type:camera_source:geograph-osgb36(NS82318140)_heading:90.00&language=en){kind=link}
| Object location | | View this and other nearby images on: OpenStreetMap | |
|---|
_on_a_tree_-_geograph.org.uk_-_933290.jpg¶ms=056.011080_N_-003.889000_E_globe:Earth_class:object_type:object_source:geograph-osgb36(NS82328140)_heading:90.00&language=en){kind=link}
Licensing edit
_on_a_tree_-_geograph.org.uk_-_933290.jpg&action=edit§ion=2){kind=link}
|
This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Lairich Rig and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
|
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Lairich Rig
- 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/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:50, 22 February 2011 | | 480 × 640 (118 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=An alga (Trentepohlia) on a tree Algae of the genus Trentepohlia are commonly found on trees and on rocks. There are several British species; for a very informative discussion, see Dr Alan J. Silver |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on sv.wikipedia.org
- Usage on war.wikipedia.org
_on_a_tree_-_geograph.org.uk_-_933290.jpg&oldid=791349576){kind=link}