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27-06-2014 07:26

Alan Rockefeller Alan Rockefeller

Yesterday I found this on a hardwood log in a clou

30-04-2014 16:23

Leandro Sánchez Leandro Sánchez

Sobre hoja de Quercus, hasta 0,6 mm de diámetro.A

26-06-2014 09:06

Blasco Rafael Blasco Rafael

. De Hola, Alguien Ayudar Florerias, y Decir si es

24-06-2014 19:06

Enrique Rubio Enrique Rubio

Hi again Can someone help me with this article on

25-06-2014 20:02

Spooren Marco Spooren Marco

Hello, I an looking for the following article by

23-06-2014 12:23

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Encontré estos ejemplares en mader

23-06-2014 23:41

Yatsiuk Iryna Yatsiuk Iryna

Hello, friends,This one was collected on the decid

24-06-2014 17:57

Enrique Rubio Enrique Rubio

Hi to all Have you some idea about this pleospora

23-06-2014 21:33

Pavol Palo

Hello friends,what do you thing about Daldinia cf.

22-06-2014 22:55

Hans-Otto Baral Hans-Otto Baral

Hellodoes anybody have a pdf of the following?Smar

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Hydropisphaera? on fruits of Fraxinus
Riet van Oosten, 16-02-2024 20:14
Riet van Oosten
Hello,

Found by Laurens van der Linde Febr. 2024 on fruits of Fraxinus.

Ascomata < 250 µm

KOH -

Asci J -

Spores 1-septate, smooth  Me: 20.3 x 4.6 µm  N = 4

Greetings, Riet
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Alain GARDIENNET, 17-02-2024 09:15
Alain GARDIENNET
Re : Hydropisphaera? on fruits of Fraxinus
Hi Riet,
Did you think at Ijuhya genus ?
Alain
Riet van Oosten, 17-02-2024 10:14
Riet van Oosten
Re : Hydropisphaera? on fruits of Fraxinus
Hi Alain,

Yes, I used the key to the genera allied to Ijuhya (pdf AscomyceteOrg 11-02 55-64) on page 63

and with "2. Hairs arising from cells of ascomatal wall, evenly covering ascomatal surface, solitary or fasciculate; ascospores smooth or striate" I arrive at Lasionectria.

Then I used the key Lasionectria on page 279 (Lechat, C. & J. Fournier (2012) A new species of Lasionectria, L. martinicencis. Mycotaxon 121: 275-280), but no match
Brigitte Bloem, 17-02-2024 12:30
Brigitte Bloem
Re : Hydropisphaera? on fruits of Fraxinus
hello Riet,

Another person in the Netherlands found this asco and posted it at the Facebooksite of the NMV (mycological organisation). Probably it's an anamorfic: Phomopsis pterphila (there're two types, small on te wings of the seeds, Phoma samararum, and bigger on the seeds itself, Phoma samararum, accourding to this text https://www.paddenstoelenwerkgroep-noordenveld.nl/waarnemingen/anamorfe-ascomyceten?fbclid=IwAR2onhq6MXF2r4GJt3ZbAoqBLvsosLYdrxU4noJzs_mEuW_oH_GuU1X3lco.  
d

 

Best regards,
Briigtte
Brigitte Bloem, 17-02-2024 12:32
Riet van Oosten, 17-02-2024 12:53
Riet van Oosten
Re : Hydropisphaera? on fruits of Fraxinus
Hello Brigitte,
Thank you for your reaction!
The ascocarps in this topic are teleomorphs
Alain GARDIENNET, 18-02-2024 09:15
Alain GARDIENNET
Re : Hydropisphaera? on fruits of Fraxinus
Hi Riet,
It's not easy to sort through all this complex in Bionectriaceae. Christian told me that hair insertion was an important first step to observe, as you read in the key. But you still need to make a sufficiently precise cut, as he was so good at doing. A median vertical section is expected for that.
It's with such collection that we can see that he leaves us a great void. But you're right to post this find. Let's hope that a specialist mycologist takes up the topic.
Best wishes,
Alain

Riet van Oosten, 18-02-2024 09:25
Riet van Oosten
Re : Hydropisphaera? on fruits of Fraxinus
Thank you for your help and the information Alain!
I tried to get a median vertical section but until now without success.
Best wishes, Riet