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03-02-2026 20:44

Zetti Mario

When I first saw this white mould on an Agaricus s

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

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Paecilomyces marquandii?
Chris Johnson, 02-03-2015 15:13
Good afternoon

Found growing on the partly desiccated cap of a Coprinopsis, on pony dung.
Conidiophores up to 300 x 3-4 µm, occasionally branched.
Conidia in long chains, 2.9-3.3 x 2.1-2.3 (very small sample).

Is this a possibility or can members offer a better species match?

Regards, Chris
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Paul Cannon, 02-03-2015 16:10
Re : Paecilomyces marquandii?
I think this is a species of Penicillium rather than Paecilomyces, the shape of the conidiogenous cell isn't right for the latter genus. Identification of Penicillium species requires culture under specific conditions and several different media, unless you have a sequencer. Sorry but that's how it goes...

Best wishes
Paul
Shane John, 02-03-2015 16:11
Re : Paecilomyces marquandii?
For me the condiiophores should be whorled (verticilate), not penicillate as this appears. Perhaps the conidia are not oval enough as well. Why not Penicillium?
Chris Johnson, 02-03-2015 16:35
Re : Paecilomyces marquandii?
Thanks Paul and John.

Penicillium it is then ...

Regards, Chris