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16-05-2022 10:37

Castillo Joseba Castillo Joseba

Me mandan el materila de Galicia (España) recolec

15-05-2022 21:53

PASCAL DUBOC

Bonsoirun  morceau de feuillu pourri flottant.. c

06-05-2022 14:38

Laurent Bonneau Laurent Bonneau

Bonjour, j'ai trouvé ces Scutellinia dans le sud

09-05-2022 19:45

Elisabeth Stöckli

Bonsoir,Trouvé au sol sur tige morte de Rubus (94

14-05-2022 21:03

Enrique Rubio Enrique Rubio

These sessile or subsessile apothecia, more or les

08-05-2022 19:29

PASCAL DUBOC

Bonjourcolonie de disques (< 2 mm) gris à marg

12-05-2022 12:48

Viktorie Halasu Viktorie Halasu

Hello,last year (22.IX.) I've found this small red

12-05-2022 17:27

Edvin Johannesen Edvin Johannesen

Apothecia 0.2-0.5 mm in diam., slightly downy exci

17-01-2012 15:11

Jean-Claude Malaval Jean-Claude Malaval

Bonjour à tous,Fréquent sur différents supports

12-05-2022 10:31

Viktorie Halasu Viktorie Halasu

Hello, can I call this Coprotus disculus, or is i

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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!