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Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

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Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

04-05-2026 18:13

Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

04-05-2026 09:50

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,(España) re

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Pauline. Penna

Bonjour  Please can someone help me with this id

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--> Rebentischia unicaudata (immature) on Cytisus
William de Jong, 24-02-2021 11:51
Hi,

A few days ago I found Helminthosporium velutinum/genistae (https://waarneming.nl/observation/207729435/) on a dead attached branch of Cytisus scoparius in The Netherlands. Together with this Helminthosporium I found several 8-spored asci: 63,8-76,2 x 14,7-17,3 µm. The spores are narrowed towards one side, with a sept in the middle: 32,2-35,8 x 5,3-5,6 µm. I added some pictures, one in Lugol.
Does anyone have suggestion which species this could be?

Thanks in advance. Regards, William
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William de Jong, 23-01-2022 21:22
Re : Asco with Helminthosporium on Cytisus
Almost a year later ;) Has anyone any idea what this could be?
Martin Bemmann, 24-01-2022 08:57
Martin Bemmann
Re : Strange ascospores with Helminthosporium on Cytisus
Hi William,

how about an unmature Rebentischia unicaudata?

Barr 1980:147 "Ascospores hyaline at first"....

Regards

Martin
Martin Bemmann, 24-01-2022 18:32
Martin Bemmann
Re : Strange ascospores with Helminthosporium on Cytisus
Here is a German collection with many immature spores (collection no. 6):

William de Jong, 24-01-2022 19:16
Re : Strange ascospores with Helminthosporium on Cytisus
That seems to be it!
Thanks a lot Martin!