White growth on ornamental cherry tree

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GeoffT
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White growth on ornamental cherry tree

Post by GeoffT » Thu May 17, 2018 4:30 pm

This has appeared in the last 7 days or so. Can anyone identify please
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Lancashire Lad
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Re: White growth on ornamental cherry tree

Post by Lancashire Lad » Fri May 18, 2018 2:19 pm

Hi, and welcome to UK Fungi.

Your photo is slightly off-focus, so the fine detail isn't really showing.

However, this looks like an early stage of the myxomycete, (slime mould), Reticularia lycoperdon.
(Until a few years ago, it was known by the Latin name "Enteridium lycoperdon").

It doesn't have an officially accepted common English name, but it is frequently described as "False Puffball".

Slime moulds are not actually fungi, but they are studied by mycologists.

In their early stages, slime moulds can actually move around, looking for bacteria etc. which they consume.

Your photo shows where the plasmodium has stopped "roaming around :D " and is morphing into a solid "blob" - which, (generally after a couple of days), will then develop a silvery dry surface. After several more days the colour changes to dark brown, the interior becomes very dry, and the whole lot disintegrates and blows away by wind action as millions of spores.

If you do a web-search for images using either of the Latin names, you will see a multitude of results showing the various stages.

It won't harm your tree in any way at all, and will be very unlikely to reappear at the same spot.

Regards,
Mike.
Common sense is not so common.

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Chris Yeates
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Re: White growth on ornamental cherry tree

Post by Chris Yeates » Sat May 19, 2018 12:56 am

Mike is absolutely correct

Compare with for example http://champyves.pagesperso-orange.fr/c ... erdon7.jpg

Spring is the usual time for this slime mould to appear - sometimes it will "fruit" on worked wood, window sills etc. When it disappears there will have been no effect on the substrate, the slime mould is after bacteria to feed on, not the wood (or paint!).

Chris
"You must know it's right, the spore is on the wind tonight"
Steely Dan - "Rose Darling"

GeoffT
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Re: White growth on ornamental cherry tree

Post by GeoffT » Sat May 19, 2018 6:04 am

Thanks both for your replies. Glad to hear that the mould won’t harm the tree!

GeoffT
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Re: White growth on ornamental cherry tree

Post by GeoffT » Sun May 20, 2018 2:13 pm

It has now gone a rusty brown colour as you suggested. Thank you so much for your help with the ID

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