NormanK's picture

Apothecia lichen

Observed: 30th May 2011 By: NormanK
S159 Neighbourhood Nature - current student
NormanK’s reputation in Plants
Apothecia
Description:

Found on rough and smooth bark trees in a shaded area of copse

Identifications
Species interactions

No interactions present.

Comments

NormanK's picture

Lichens (Apothecia)

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.

Syrphus's picture

You are not the first to have

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.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

Syrphus's picture

Re your revision,

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.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

NormanK's picture

an alga

Again, thanks for the helpful information.

AlanS's picture

At the risk of spamming ...

I have a web-page on Trentepohlia at:

http://www.bioref.lastdragon.org/Chlorophyta/Trentepohlia.html

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).

Alan