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09-01-2025 20:35

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon This small pink ascomycete, 2 mm i

10-01-2025 03:04

Masanori Kutsuna

Hello, Does anyone have following article and cou

08-01-2025 23:07

Jean-Luc Ranger

Je pensais avoir à faire à un Hypomyces mais les

09-01-2025 17:28

Yanick BOULANGER

BonsoirRécolté par un ami sur un tilleulJ'ai tr

06-01-2025 16:54

Karl Soler Kinnerbäck

Hi! Found this small disco on herbaceous stems in

05-01-2025 15:38

Adam Polhorský

Hello, can anyone provide this work? Samuels GJ (

07-01-2025 05:40

Tomaz Vucko Tomaz Vucko

Greetings everyone!Would perhaps someone here reco

06-01-2025 18:03

Rot Bojan

Hello!I found some photos in the archive, with inc

05-01-2025 12:44

Petra Eimann Petra Eimann

Hello all,Found on 04.12.2024 from a mixed deciduo

04-01-2025 16:08

Robin Isaksson Robin Isaksson

Hi!Anyone that has this one: Lowen, R. 1989. Two n

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Synnemata of Penicillium/Talaromyces on Hawthorn (Crataegus) fruit
Stephen Martin, 08-12-2022 09:10
Stephen MartinIs there a specific Penicllium species like this growing on the rind of decaying fruit (not advanced state of decaying yet) of Crataegus monogyna?

I have not done any microscopical investigations, but perhaps some conclusion can be already drawn from the shape, feeding type and host specificity discussed here. I can do some basic microscopy later on.

I think I managed to have a pure culture (still 1cm wide after 3 days).

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Stephen Martin, 11-12-2022 08:45
Stephen Martin
Re : Synnemata of Penicillium/Talaromyces on Hawthorn (Crataegus) fruit
Well, this should be a Talaromyces sp. - but I cant find much knowledge about synnemata species on fruit. Wondering if someone found something similar to compare.... Good Sunday!
Przemyslaw Drzewiecki, 11-12-2022 14:38
Re : Synnemata of Penicillium/Talaromyces on Hawthorn (Crataegus) fruit
Stephen Martin, 11-12-2022 21:53
Stephen Martin
Re : Synnemata of Penicillium/Talaromyces on Hawthorn (Crataegus) fruit
Thank you for this Przemek - seems we have same interest / 'hobby' !!

I am happy to see some of my Penicillium records and colonies match those listed in the document you kindly shared (Is that your work?).

However I think the one I found on Hawthorn is different from those in the doc because it formed distinct tufts (synnemata) while  those in the document are species with simple conidiophores. Also, my colonies have yellow-ochre areas - the same colour as the base/column of the synnematous growth.

For now I am happy that I have a pure colony and I will do more research in the coming days.
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Przemyslaw Drzewiecki, 11-12-2022 22:31
Re : Synnemata of Penicillium/Talaromyces on Hawthorn (Crataegus) fruit
Yes, mycology is a great hobby. :-) Sorry, I didn't notice that I provided a link without authors.

Here is the public source:

https://www.natur.cuni.cz/biologie/botanika/veda-a-vyzkum/atlas-mikroskopickych-saprotrofnich-hub-ascomycota


Are you sure these fruits didn't pass through the fox's digestive system? It is somewhat similar to Penicillium vulpinum.
Regards, Przemek
Stephen Martin, 12-12-2022 00:57
Stephen Martin
Re : Synnemata of Penicillium/Talaromyces on Hawthorn (Crataegus) fruit
I'm impressed with that website Przemek, the amount of info is incredible a mix of educative and taxonomic. Even if written in czech, i know I am going to use it. 

Your question is very easy to answer. The fungus was found on the skin (epicarp) of the fruit of Crataegus monogyna (Hawthorn) fallen from the tree and lying on moist ground in a valley, still reddish and intact.  In our country (Malta) there are no foxes or other mammals that consume this fruit. There were hundreds of fruits and about 10% where infected with this Penicillium.

Your suggestion is valid, it looks likes P. vulpinum (P. claviforme) but it is not copriphilous.

Thanks for messaging!