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17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

17-02-2026 17:26

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous, Je recherche cette publication :

03-02-2013 19:50

Nina Filippova

Good time), I've compared this specimen with the

15-02-2026 04:32

Tomaz Vucko Tomaz Vucko

One more specimen that is giving me some descent a

17-02-2026 13:41

Isabelle Charissou

Bonjour, est-ce que quelqu'un pourrait me fournir

16-02-2026 18:34

Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

16-02-2026 17:14

Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

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On Populus leaves
Enrique Rubio, 21-04-2022 12:10
Enrique RubioCan you think of any ideas that might help me with this pyrenomycete that forms minute blackish, subsuperficial, gregarious, more or less roundish, glabrous, not setose ascomata on leaves of Populus nigra?
My first idea was Mycosphaerella, but I can't find any populicolous species that fits well to its characters. The Ascospores are hyaline and do not appear to change colour, at least at this stage of maturation.
Many thanks again
  • message #72514
Bernard Declercq, 26-04-2022 09:37
Bernard Declercq
Re : On Populus leaves
Hi Enrique,

maybe Cladosporium allicinum (Fr.: Fr.) Bensch, U. Braun & Crous, which has saccate asci en ascospores with biguttulate hemispores. This species seems to occur on all kind of substrates.

Best regards,
Bernard
Enrique Rubio, 26-04-2022 10:51
Enrique Rubio
Re : On Populus leaves
Hi Bernard
Although these are difficult fungi, your proposal seems quite good even without knowing the asexual morph.
Many thanks