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27-04-2026 20:52

Mollisia or related genus from Portugal - with quite peculiar character
Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Micropodia pteridina?
Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

another anamorph on monocotyleous remains from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

bright green minute anamorph on Citrus aurantius-twig from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

anamorph on monocotyleous leaves from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Spiral conidial crust
Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Microdiplodia henningsii
Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

Ramularia sp ?
William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

lachnum pudicellum
Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

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Discomycete from Spirea branches
Alex Akulov, 12-07-2011 19:30
Alex Akulov

Good day


I try to make microphotos for some Discomycetes samples, which looks interesting for me. May be you have some ideas about them.


Alex

  • message #15817
  • message #15817
Hans-Otto Baral, 12-07-2011 20:19
Hans-Otto Baral
Re : Discomycete from Spirea branches
Thoug I do not know the species very well, I think this could be Godronia spiraeae

Zotto
Alex Akulov, 12-07-2011 21:21
Alex Akulov
Re : Discomycete from Spirea branches

Dear Zotto


Thank you!


According Seaver description spores of Godronia spiraeae are 25-35 x 3-4, but in my sample - up to 70 x 1,1. Therefore, I think it is something another.


Alex

  • message #15821
Alex Akulov, 12-07-2011 21:34
Alex Akulov
Re : Discomycete from Spirea branches
Zotto, do you familiar with the article:
Growes J.W. The genus Godronia // Canadian Journal of Botany, 1965, 43:(10) 1195-1276? I have not access to this article. Possible there are more information about Godronia spiraeae there.

Alex

Guy Garcia, 12-07-2011 22:05
Re : Discomycete from Spirea branches
avec de grandes spores voir peut-être Godronia cassandrae f. spiraeicola (Henn.) Groves
Alex Akulov, 12-07-2011 22:24
Alex Akulov
Re : Discomycete from Spirea branches

Thank you, Guy.


I can not to verify your idea , because I have not Groves original article from Canadian Journal of Botany:-( But according Mycobank, basionim of Godronia cassandrae f. spiraeicola (Henn.) Groves is Cenangella spiraeicola Henn. In the original description of Cenangella spiraeicola in Hennings paper spores are even smaller - 10-13 x 1,5-2.


May be you have another information?


Alex

  • message #15824
Stip Helleman, 13-07-2011 08:27
Stip Helleman
Re : Discomycete from Spirea branches
Hi Alex,
this sporesize fits good for the imperfect, Groves gives no indication for the sporesize of this forma so i assume it will be the same as cassandrae only differing in substrate.
i will send photos.
cheers Stip
Alex Akulov, 13-07-2011 09:37
Alex Akulov
Re : Discomycete from Spirea branches
Thank you very much for advise and sent Groves article!
My specimens really looking like Godronia cassandrae f. spiraeicola (Henn.) Groves. But there are some confusions because visual similarity of macroconidia and ascospores.

Alex

  • message #15827
  • message #15827
  • message #15827
Hans-Otto Baral, 13-07-2011 11:08
Hans-Otto Baral
Re : Discomycete from Spirea branches
Yes, that sounds better. But the spore  size of G. cassandrae differs with 40-85 x 1.5-3.5 µm (Groves 1965) from yours in the width. How sure are you with that?

For spiraeae Groves says 20-45 x 2.5-4 µm, which is also much wider than you say.

Zotto
Alex Akulov, 13-07-2011 12:19
Alex Akulov
Re : Discomycete from Spirea branches
In my sample most of asci are immature. I've been doing a lot of preparates in order to see at least one spore. And even those individual spores that I could find were not formed. Perhaps that is why their size does not quite equal to the description of Groves.
I plan to be in the same locations in the Carpathian mountains in 2 weeks and try to find a more mature specimens.

Alex