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05-05-2025 10:09

Nicolas Suberbielle Nicolas Suberbielle

Re-bonjour,Cet ascomycète trouvé et étudié par

10-05-2025 18:47

David Chapados David Chapados

Hi, Does anyone have an idea of what this could b

09-05-2025 16:01

Thomas Flammer

I found a black cushon which might eventually be 

09-05-2025 19:10

Enrique Rubio Enrique Rubio

Hi to everybody.This Orbilia (apos up to 0.5 mm),

02-05-2025 13:29

Isabelle Charissou

Bonjour, j'aimerais savoir s'il y a eu des public

06-05-2025 13:37

Thomas Flammer

Munk, Anders (1953). The System of the Pyrenomycet

08-05-2025 20:50

Andreas Jacob

Good evening, due to contstant drought I started

07-05-2025 18:29

Francois Guay Francois Guay

I found this small hyaline ascomycete on moist, de

08-05-2025 02:22

Francois Guay Francois Guay

I found this white, hairy ascomycete on the bark o

08-05-2025 18:32

Ethan Crenson

Hello all, I was looking at leaves of Yucca from

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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, 24-07-2022 21:08
Stephen Martin
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, 25-07-2022 00:16
Stephen Martin
Re : Mold on Agaricus xanthodermus
Thank you David, greatly appreciated!

That's a massive contribution!