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30-05-2019 19:05

Thomas Læssøe

unfortunately not the best images to go from. tin

10-06-2022 00:28

Malcolm  Greaves Malcolm Greaves

Could someone give me a suggestion for this Scutel

12-06-2022 17:21

Marcel LECOMTE

Bonjour au forum,Un membre du groupe peut-il m'exp

12-06-2022 16:10

Josep Torres Josep Torres

Hola.Unos synnemata sobre la corteza de un pequeñ

11-06-2022 13:41

Bernard Declercq Bernard Declercq

Hi,Once again I am in need of some papers:Checa J.

11-06-2022 10:40

Maria Plekkenpol Maria Plekkenpol

Hello,On wild horse dung I saw very small asco's a

11-06-2022 05:10

Masanori Kutsuna

Hello,Xylaria liquidambar is treated as "orthograp

11-06-2022 08:59

Josep Torres Josep Torres

Hola.Una aparente Nectriaceae compartiendo espacio

20-10-2014 13:27

Yatsiuk Iryna Yatsiuk Iryna

Hi there!Need help with this mysterious finding on

10-06-2022 17:21

Juuso Äikäs

These Cyathiculas were growing on the same stem as

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Pyrenos on Quercus leaf
Juuso Äikäs, 20-06-2022 07:56
I found some tiny black pyrenos growing on a fallen, decaying Quercus leaf. 

The 2-celled spores measure 8.3 - 9 × 3.5 - 4.1 µm. IKI negative.

Does anyone know what this is? Probably something quite common. Venturiaceae?
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Spooren Marco, 20-06-2022 11:35
Spooren Marco
Re : Pyrenos on Quercus leaf
Hello,

What do you think about "Mycosphserella punctiformis "?If there was no name change there ?

Best,

Marco
Juuso Äikäs, 20-06-2022 13:21
Re : Pyrenos on Quercus leaf
Thanks for the answer -- that does seem like a good suggestion.

The spores are a bit wide with this one, though. But if measured from the septum, the width is 2.7 - 3.2 µm, which might fit better. I'm not sure which measurement style is preferred in this case (center vs. max width).
Spooren Marco, 20-06-2022 15:49
Spooren Marco
Re : Pyrenos on Quercus leaf
Dear,

According to Corlett, annotated list names in Mycosphaerell, your measures are reasonable.There is a study in Mycosphaerella by Andre Aptroot, but I not use that one.

Best,

Marco