Diaporthe spiculosa? - Forum ASCOFrance

17-02-2026 09:41

Diaporthe spiculosa?

Maren Kamke

Good morning, I found a Diaporthe species on Samb

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Diaporthe spiculosa?

Maren Kamke, 17-02-2026 09:41

Good morning,

I found a Diaporthe species on Sambucus nigra that I currently suspect to be Diaporthe spiculosa. I would greatly appreciate any opinions or confirmation regarding this identification.

The full field documentation and photos are available here:
https://www.inaturalist.org/observations/338900548

Kind regards,
Maren

Mathias Hass, 17-02-2026 10:29

Re : Diaporthe spiculosa?

Looks like Diaporthe. It seems to me what I would call Diaporthe circumscripta (as in Ellis and Ellis). I was not aware of the name D. spiculosa. Curiously Diaporthe circumscripta is listed some places (eg. Bladmineerders) as synonym to Aglaospora profusa (Pleosporales !!!), but not by Index Fungorum, which has Aglaospora profusa by the current name Massaria anomia. I have no idea what the correct name should be or whether D. spiculosa and D. circumscripta are the same thing or different species.

Cheers Mathias

Enrique Rubio, 17-02-2026 14:01

Re : Diaporthe spiculosa?

Hi both.
This is what I identified years ago as Diaporthe spiculosa on Sambucus nigra. The spores appear to be larger than those cited for Daporthe circumscripta.
Cheers

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