lpearce's picture

Any idea what ths is?

Observed: 25th September 2011 By: lpearcelpearce’s reputation in Fungi and Lichenslpearce’s reputation in Fungi and Lichenslpearce’s reputation in Fungi and Lichens
IMGP3814
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Description:

Really stumped with this , not even sure what group to put it in. The first two photo's show sites about 100 yards apart by the River Inver. As you can see both were attached to grass stems.

Identifications

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Some fungi are very poisonous so a mistaken ID could have serious consequences.

Species interactions

No interactions present.

Comments

leenestofvipers's picture

not so common..

Not so common where you are though.

lpearce's picture

Thanks

I have posted two close up photos taken down a dissecting mic do they help shows the structure a little better.
Looking at Physarum cinereum on the internet it seems to show it growing as distinct 'ball structures all the way up the stems rather than this blob. Would this be at a different stage?
Will it grow stalked structure?

Les Pearce
Photos- http://www.flickr.com/photos/assyntnature/
Videos http://www.youtube.com/user/assyntnature
Wildlife of Assynt

leenestofvipers's picture

sessile

Physarum cinereum doesn't have stalks. It is a mass of blobs with a grey / white colouration. The sporangia are often clustered together.If this is cinereum it is an early stage prior to sporing. The spores are a sort of purple brown colour.

leenestofvipers's picture

would be interested to know

Is it still there? Would be interested in looking at the spores.

lpearce's picture

Yes

The one shown in the first photo I have in a a plastic bag in the shed .
How long would you think it would be before the spores appear?

Looking at NBN, Mucilago seems more likely.

Would the spores enable us to decided between Mucilago crustacea var. crustacea and Physarum cinereum?
Could the spores be seen with a dissecting mic?

Les Pearce
Photos- http://www.flickr.com/photos/assyntnature/
Videos http://www.youtube.com/user/assyntnature
Wildlife of Assynt

leenestofvipers's picture

24 hours

Mucilago should spore within 24 hours of appearing but it depends on the conditions.
The spores would be a different size (although there is some overlap apparently), slightly different colour and 'wartiness'.But is is a bit of a faff. You will need x1000 under oil immersion and a lot of patience.I personally haven't looked at either of these two species under a microscope which is why I am interested.
I am not sure NBN is much help really as slime mould is very under recorded. Mucilago likes limestone not acid areas. I am not sure what you have there. A bit of both I think.
Th fruiting body of Mucilago is more of a blob than cinereum which is made up of white or grey sporangia which can crowd together.Your pics look like a bit of both to me so I am open minded as to ID. Keep an eye on it and see what it does. I usually keep mine in a petrie dish with a bit of distilled water on a sterile pad to stop it drying out.

flaxton's picture

Physarum cinereum is made up

Physarum cinereum is made up of lots of individual "blobs" (technical term) or possibly two or three together whereas Mucilago is just one amorphous blob. Although as Leenestofvipers says the spores are very similar at about 9-12 um for Physarum and 11-14 for Mucilago the former is black in mass and the latter brown. Yours look black so I am sure it is not a Physarum. The overall look is not (for me) right for Physarum.

Mal