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08-04-2026 20:33

Vasileios Kaounas Vasileios Kaounas

Found 07-04-26, in Abies cephalonica. Diameter 1,

08-04-2026 10:39

FRANCIS FOUCHIER

Bonjour , je recherche en pdf cet article: KORF R

06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 21:36

Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

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Mold on Agaricus xanthodermus
Byrain, 18-11-2012 21:36
I found this mold growing on a old and dried out Agaricus xanthodermus in CA, USA on 10-28-2012.  Could this be a Trichoderma?  And can anyone id it to species with the information avaiable?  If not, what other information could help?  I'm very new to working with these things, thanks for looking. :)

The conidia possibly had faint ornamention, as did sections of the hyphae, the conidia was 3 - 4 um and the average was 3.05.  No clamps or reaction with melzers were observed.
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David Malloch, 18-11-2012 22:33
David Malloch
Re : Mold on Agaricus xanthodermus
Good evening,

This looks like a species of Penicillium to me.  Penicillium brevicompactum commonly grows on defunct agarics but has smooth conidiophores, unlike the roughened ones in your material, which remind me more of P. aurantiogriseum.  It seems to be a member of the sugbenus Penicillium, which is thoroughly monographed by Samson & Frisvad http://www.cbs.knaw.nl/publications/CBSPublicationDetails.aspx?Rec=1049?.

Dave

Byrain, 18-11-2012 23:15
Re : Mold on Agaricus xanthodermus
Hi,

Thank you for the information and for the amazing link, I looked quickly at the pdfs, but much of it went over my head.  It will take some time to study them enough to attempt an identification, especially since I do not currently have the skills or materials to make a culture or many of the chemicals that seem to make the identification process easier. :)
Stephen Martin Mifsud, 24-07-2022 21:08
Stephen Martin Mifsud
Re : Mold on Agaricus xanthodermus
I would like a copy of this publication - the URL has been changed since then. I am working on a similar Penicillium. Thanks!
Stephen Martin Mifsud, 25-07-2022 00:16
Stephen Martin Mifsud
Re : Mold on Agaricus xanthodermus
Thank you David, greatly appreciated!

That's a massive contribution!