Accès membres

Mot de passe perdu? S'inscrire

08-05-2026 11:55

Stictidaceae on Picea
Gernot Friebes

Hi,found on a decorticated Picea abies branch stil

11-05-2016 20:37

Little pinkish asco
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi,this very little ascomycete grew on soil in a m

09-05-2026 07:37

Literature - Pulvinula ovalispora
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,please, could anyone share this paper?Ferná

07-05-2026 11:02

Delitschia sp.
Ã…ke Widgren Ã…ke Widgren

Hello,About two months ago I found a strange Delit

05-05-2026 22:40

Plagiostoma on Salix
Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

06-05-2026 11:25

En excrementos de caballo
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

06-05-2026 17:23

A apiosporous bitunicate on decaying Betula leaves - spores with thick slime coats - denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10594257

28-04-2026 20:07

Marthamycetales? - from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

04-05-2026 18:13

Black rod-like structures with branching curved conidiophores
Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Black pseudothecia on submerged foliar debris - Pleospora sp.
Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

« < 1 2 3 4 5 > »
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


 


 


.

  • 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