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17-07-2024 11:33

Angel Pintos Angel Pintos

Hello, anybody body has:Pande A. and Rao, V.G. (1

17-07-2024 10:53

Hans-Otto Baral Hans-Otto Baral

I have a question about the scaling of illustratio

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

17-07-2024 08:35

Peter Welt Peter Welt

Who can help? Malloch, D.; Hubart, J.-M. 1987. An

16-07-2024 18:32

Andgelo Mombert Andgelo Mombert

Bonsoir, Un discomycète sur Liochlaena lanceolat

24-08-2020 13:00

Yulia Lytvynenko Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

11-07-2024 14:29

Viktorie Halasu Viktorie Halasu

Hello, a thin-fleshed Mollisia on a monocot stem

15-07-2024 10:38

Joaquin Martin

Hi, I found this Ascobolus in company of Cheilyme

14-07-2024 18:23

Joaquin Martin

Hi,I found this Ascomycete on horse dung.The spora

13-07-2024 19:50

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hamatocanth

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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