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17-02-2026 09:41

Diaporthe spiculosa?
Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

17-02-2026 13:41

recherche de publi
Isabelle Charissou

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

03-02-2013 19:50

Helotium schimperi
Nina Filippova

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

16-02-2026 18:34

Exosporium tiliae
Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

08-12-2025 17:37

possibly related to Melanomma - on Abies
Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-02-2026 21:25

Pyreno in the bark of Lonicera xylosteum
Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

16-02-2026 17:14

Cucurbidothis specimens?
Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

recherche de publi
Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

16-02-2026 00:05

Literature request
Maren Kamke Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Sarcoscypha coccinea or austriaca?
Joeri Belis

between leaf litter on twig in young salix growth.

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Diaporthe? on Berberis communis
Jakob Schneller, 24-09-2015 16:59
Jakob Schneller

The spores are extrordinary large 36-39 um x 18.20 um. The asci 140-160 um. Pyrenocarpous,growing immersed and the opening splitting the  the bark, black. on branches of Berberis


 


 


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  • message #38086
  • message #38086
  • message #38086
Stoykov Dimitar, 25-09-2015 14:11
Stoykov Dimitar
Re : Diaporthe? on Berberis communis
Hi, Dear Jacob,

Maybe useful to try another genus. Beak of the perithecium is not seen (in genera of the Diaporthaceae and Melanconidaceae they always present).

Regards, Dimitar
Stoykov Dimitar, 26-09-2015 09:10
Stoykov Dimitar
Re : Diaporthe? on Berberis communis
I have checked, as far as possible,  in Wehmeyer's monographs (about Diaporthe - 1933), and about Melanconis and allied genera (1941). The stroma of your find looks like those of Melanconidaceae , but I don't know if the spores have appendages. If present - this fungus  could be attached to  Prosthecium (maybe an undescribred one), but I am not familiar with Prosthecium.
In Wehmeyer's monograph (1933) there are 2 species amongst the large spored ones - Cryptodiaporthe magnispora (Acer)  and C. pyrrhocystis (Alnus, Coprylus)  - but the spores are not constricted at septa and are much thinner (6) 7-9 micrometers.
Alain GARDIENNET, 27-09-2015 16:02
Alain GARDIENNET
Re : Diaporthe? on Berberis communis

Bonjour,


Before searching in Diaporthales, the first question should be : are the asci bitunicate or unitunicate ?


Alain

Stoykov Dimitar, 28-09-2015 14:21
Stoykov Dimitar
Re : Diaporthe? on Berberis communis
Yes, the right question  to answer. Thank you,  Alain!
Regards,

Dimitar