Found on rough and smooth bark trees in a shaded area of copse
No interactions present.
My thanks to Syrphus for the comments. I learning slowly how to distinguish lichens from alga - in this case I have seen quite a few of these so now I'll know. The observations have helped a lot.
You are not the first to have thought Trentepohlia is a lichen, but the little tussocks of orange filaments are unlike any lichen we have.
Interestingly, this algal genus is a partner in some lichens (which are intimate relationships between a fungus and an alga or blue-green bacterium).
You might edit the observation to put it in Plants rather than F&L.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Re your revision, Trentepohlia is a green alga - despite appearances! - as it has cells with cellulose walls and chloroplasts containing chlorophyll. The green of the chlorophyll is masked by other pigments (as it is in Copper Beech, brown and red seaweeds etc.).
A blue-green alga, properly called a blue-green bacterium or Cyanobacterium, has a different form of chlorophyll fixed on membranes. These are thought to be the origin of chloroplasts in higher plants.
Again, thanks for the helpful information.
I have a web-page on Trentepohlia at:
It's a bit old and needs revision, but it serves to show the nature of Trentepohlia. Yes, as Syrphus has said, it belongs in the Green Algae (Chlorophyta).
Lat/Lng: 51.3149, -0.8011
OS grid ref: SU836579