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17-12-2023 16:24

tiny white helotial
Yannick Mourgues Yannick Mourgues

Hi. Need help to ID this very tiny white helotial

17-12-2023 13:32

Rutstroemia/Clarireedia maritima or R. calopus var?
Bertien Roelandse

L.S.Summarizing the few topics about Rutstroemia m

17-12-2023 18:30

Trichoglossum walteri ???
Joaquin Martin

Hi,Trichoglossum entirely plush, full of hairs fro

22-03-2020 22:03

Xylaria guepinii\ friesii?
Przemyslaw Drzewiecki

Hello all. This is my first post in this forum. I

17-12-2023 13:04

Discomiceto por determinar
Josep Torres Josep Torres

Hola.Uno de varios apotecios de color blanco de en

16-12-2023 17:08

Phaeohelotium ?
Vasileios Kaounas Vasileios Kaounas

Found in Abies cephalonica, diam. 3 mm, spores 12

15-12-2023 17:25

Cup fungi on Abies balsamea
Khomenko Igor Khomenko Igor

Hi, I'm completly lost with this cup fungi. This i

14-12-2023 16:51

Bulgariella pulla -like
Khomenko Igor Khomenko Igor

Hi, I found these black cup fungi on recently brok

12-12-2023 18:18

Trichonectria on Populus wood
Matthias Reul Matthias Reul

Hi altogether,a few weeks ago Torsten Richter foun

07-12-2023 11:22

Need help for these perithecia
Pierre-Yves Julien

Bonjour à tous, En étudiant un Pulvinula, j'ai

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Ijuhya spec. on leaf of Vaccinium vitis-idaea
Kees van Oorde, 25-11-2023 14:49
Kees van OordeVery small fruiting bodies on affected leaves. Four spores per ascus. Spores with 1 sept, slightly constricted and slightly asymmetrical, approximately 17.3x4.8mu. 400X, 2.5mu per tick mark. See also https://waarneming.nl/observation/292806132/
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Jacques Fournier, 25-11-2023 15:08
Jacques Fournier
Re : Ijuhya spec. on leaf of Vaccinium vitis-idaea
Hi Kees,
very likely Ijuhya tetraspora.
Our paper on the genus is in open access at the website of Ascomycete.org
Cheers,
Jacques
Kees van Oorde, 29-11-2023 13:34
Kees van Oorde
Re : Ijuhya spec. on leaf of Vaccinium vitis-idaea
Thanks for your comment. In the Netherlands, this species only occurs on tree bark,especially of Salix. It is very rare here. Is it also possible on leafs? With Regards, Kees.
Marian Jagers, 01-12-2023 21:41
Marian Jagers
Re : Ijuhya spec. on leaf of Vaccinium vitis-idaea
Hello Kees,

Your find is very similar to what I found before in the Netherlands. I found I. tetraspora both on wood of Cytisus scoparia and on a decayed apothecium of Hypocreopsis lichenoides.


With regards,


Marian Jagers

Kees van Oorde, 06-12-2023 16:17
Kees van Oorde
Re : Ijuhya spec. on leaf of Vaccinium vitis-idaea
I find the paper Four new species of Ijuhya (Bionectriaceae) from Belgium, metropolitan France and French Guiana on: https://ascomycete.org/Portals/0/Archives/AscomyceteOrg%2009-01%2011-18.pdf  It most be Ijuhya tetraspora for sure.

Thanks for the comments.