Unidentified yellow patch

[clowder]

Can anyone help me with this photo please. I hope it is alright as I haven't done this before. It was growing on a rotting log beside a path.

[Lancashire Lad]

Hi Clowder, and welcome to WAB.

Your photo is a bit on the small side, and appears to be slightly overexposed so the colour of the subject looks a little washed out.

Was the colour a more intense yellow?

I'm not certain, but from what I can see I think your photo is of a slime mould.
(Not technically fungi, but slime moulds are generally looked upon as part of the fungi world).

I would say that it looks like Fuligo septica, otherwise known as Dog's Vomit, or Flowers of Tan.

You might want to have a look at the sticky thread "Help Us To Help You Identify Fungi", located at the top of the fungi forum page. It gives a lot of info regarding how best to photograph, and what sort of information to provide when requesting ID's.

Regards,
Mike.

[clowder]

Thanks Mike. I struggled because the first photo was too large. It was bright lemon yellow and the cells were clustered together like tiny round dots particularly at the edges.

[Adam Cheeseman]

I'd say it's one of the slime moulds too.

Cheers,

Adam

[Lancashire Lad]

Originally Posted by clowder

....It was bright lemon yellow and the cells were clustered together like tiny round dots particularly at the edges.

If they were distinctly separate "round dots", it may not be F.septica.

Slime moulds generally go through several phases, each looking distinctly different to the next. Yours looks like it might be at the stage where the plasmodium is changing into sporangia (round dots ).

There are several yellow(ish) shaded slime moulds in which the sporangia appear very tightly packed together, giving the overall impression of looking at first glance, like (for example) - a rice pudding

I'm by no means an expert, so I'm not at all sure of what species it might actually be. You might get a better response by posting again on the Myxomycetes sub-forum, or asking one of the mods if this thread could be moved there.

Regards,
Mike.

[Chris Yeates]

Originally Posted by Adam Cheeseman

I'd say it's one of the slime moulds too.

Cheers,

Adam

agreed - I approached a thread with this title with a certain degree of caution!

delighted to see mattresses are not involved . . . .

Chris

[stickman]

Originally Posted by Lancashire Lad

If they were distinctly separate "round dots", it may not be F.septica.

Slime moulds generally go through several phases, each looking distinctly different to the next. Yours looks like it might be at the stage where the plasmodium is changing into sporangia (round dots ).

Hi Chowder,

Just to add - If you can get back tomorrow to take another pic it'll probably look entirely different and will help in getting a more accurate ID.

Cheers, Nick.

[solus]

Originally Posted by Chris Yeates

delighted to see mattresses are not involved . . . .

Chris

You'll be examining old mattresses dumped by the roadside for funguses next.... or do you anyway?