Mushroom Lady's picture


Observed: 1st October 2011 By: Mushroom Lady

Like a giant mass of cuckoo spittle on the trunk of a tree on a remote part of a private estate. It looked like fairy liquid suds (approx 20-25 cm top to bottom). I have no idea what it might be.

  • Slime Flux (bacterial wetwood)
    Confidence: It might be this.
Species interactions

No interactions present.


anonymous spotter's picture

Maybe -

A slime mould - but I'm sure you have already considered that.
There is a variation to the "paintball" game that uses a type of foam-shooting water pistol. Any aficionados in your part of the world?

Mushroom Lady's picture

We did wonder about Fairy

We did wonder about Fairy Liquid!!! It was found on a large private estate, so paintballing could be a possibility, but in that case I would have expected to see more than just one occurrence. Also, the Estate Owner was keen that we shouldn't disturb the pheasants, so it's unlikely that he would have allowed paintballing.

Mushroom Lady

leenestofvipers's picture


I was just reading about bacterial wetwood (also called slime flux). Maybe it is that?

Mushroom Lady's picture

Interesting. I had never

Interesting. I had never heard of slime flux. Should it not have gone brown on contact with the air, though?

Mushroom Lady

leenestofvipers's picture

I am not sure

I had never heard of it either. Seemed to be lots of pics of it as white though if you look on other sites.

fungi's picture

not fungal, but perhaps of insect origin ?

This does not look like a fungus to me. It appears rather 'foamy' on the image.
Another suggestion: Could this have been produced by insects? Members of the Aphrophoridae, for example, produce such foamy structures (I think they protect their larvae with it, but not sure).