NS8281 : An alga (Trentepohlia) on a tree

taken 11 years ago, near to Bonnybridge, Falkirk, Great Britain

An alga (Trentepohlia) on a tree
An alga (Trentepohlia) on a tree
Algae of the genus Trentepohlia are commonly found on trees and on rocks (there are several British species).

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: NS4381 : An alga (Trentepohlia) on rock.

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 LinkExternal link ).
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NS8281, 11 images   (more nearby )
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Date Taken
Wednesday, 6 June, 2007   (more nearby)
Saturday, 23 August, 2008
Geographical Context
Woodland, Forest 
Image Buckets ?
Closeup  Life 
Place (from Tags)
Chacefield Wood 
Algae   (more nearby)
Subject Location
OSGB36: geotagged! NS 823 814 [100m precision]
WGS84: 56:0.6622N 3:53.3436W
Camera Location
OSGB36: geotagged! NS 823 814
View Direction
EAST (about 90 degrees)
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