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24-02-2026 00:21

Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

24-02-2026 11:01

Gernot Friebes

Hi,found on a branch of Tilia, with conidia measur

23-02-2026 11:22

Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

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conidioma on a mouse dropping
François Bartholomeeusen, 08-03-2021 22:09
Dear forum members,

On 26 February 2020, I found some conidioma on a mouse dropping (< 7 mm).
The colour changed day by day from white to bright yellow to greenish yellow.
I am not familiar with fungi in an anamorphic state.
Is this called a synnema? The conidia are globose/ovate and measure 3.4-4.2 x 2.4-3.2 µm.
I would like your help to identify them.

Thank you very much in advance,

François Bartholomeeusen
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David Malloch, 09-03-2021 01:06
David Malloch
Re : conidioma on a mouse dropping
Nice picture of the synnemata.

This is a species of Peniciium, probably P. vulpinum.
François Bartholomeeusen, 09-03-2021 15:56
Re : conidioma on a mouse dropping
Hi David,

Thank you for your reply. I thought P. vulpinus was host-specific. I forgot to mention that the synnemata were smaller than 2 mm. Probably dung is dung!

Kind regards,

François

David Malloch, 09-03-2021 17:51
David Malloch
Re : conidioma on a mouse dropping
Hi François,



Penicillium vulpinum is just a guess. Penicillium coprobium and P. coprophilum are related synnematous species in Series Robsamsonia that also occur on dung and might be what your collection is. You would probably have to study it in pure culture to be sure.

David
François Bartholomeeusen, 10-03-2021 11:39
Re : conidioma on a mouse dropping
Good morning David,

Thank you for your suggestion! I am sorry to say that I have neither the knowledge nor the equipment to set up a pure culture. I have tried reading Houbraken et al 2016 and taking into account "mouse dung" there are 5 candidates in the section Robsamsonia: P. coprophilum, P. coprobium, concentricum, P. glandicola and P. vulpinum.
A final microscopy attempt did not provide a clear picture of the synnemata's structure (attached some photos).
I classify this find as Penicillium spec.

Thanks again and best regards,

François

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