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Fungus on ivy

Posted: Thu Mar 19, 2020 5:35 pm
by markwilson
I have recently found this on Ivy (Hedera helix) in West Somerset. Using Ecoflora Ihave got some suggestions

I used Ellis and Ellis (In Ecoflora) to try and find likely candidates In order of preference
Proliferodiscus pulveraceus see
Stictis radiata see
Lachnum corticale see ... -corticale

Has anyone any thoughts


Mark Wilson

Re: Fungus on ivy

Posted: Thu Mar 19, 2020 9:04 pm
by Chris Yeates
Hi Mark

It's always worth reading descriptions as well as looking at macro-type photographs.
I suppose I can see the superficial resemblance to Proliferodiscus.
Stictis species are very different - the apothecia are sunk below the surface level.
Lachnum corticale has very different "hairs".

However - and it's a big however - while all the above are ascomycetes, I think you have one of the reduced basidiomycetes there, in fact a member of the Agaricales.
Check out Lachnella alboviolascens, for example here: ... violascens
and here: ... ascens.htm
The occasional mini-island of hairs in the centre of the hymenium is seen quite frequently.

Hope that helps

PS - get a microscope - lots more fun and information ;)

Re: Fungus on ivy

Posted: Fri Mar 20, 2020 8:24 am
by markwilson
Thanks Chris

The ... violascens

looks hopeful

Yes I know I ought to get a microscope but when will I be able to get time at home to use it!

Regards Mark