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20-06-2022 07:56

Juuso Äikäs

I found some tiny black pyrenos growing on a falle

17-06-2022 22:21

Ueli Graf Ueli Graf

Lekh R. Batra:World species of Monilinia (fungi)Th

18-06-2022 09:32

Castillo Joseba Castillo Joseba

De ayer en madera de fagus, metida en el agua en t

17-06-2022 20:05

Juuso Äikäs

I found these pale yellow-brown fruitbodies yester

14-06-2022 18:22

Guy Buddy

Greetings,Could this be a species of Phaeocryptopu

15-06-2022 17:31

Juuso Äikäs

These little pyrenos were growing on a fallen, dec

15-06-2022 17:50

Hardware Tony Hardware Tony

After checking over 40 species of Phaeosphaeria I

11-06-2022 12:03

Laurent Bonneau Laurent Bonneau

Adelphella babingtonii Bonjour tout le monde. 

15-06-2022 09:24

Peter Welt Peter Welt

Wer hat Zugang zu diesen Artikel? Taxonomic stu

14-06-2022 22:22

Juuso Äikäs

Yesterday I was visiting an open bog, and found so

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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