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08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

10-03-2026 18:08

Marc Detollenaere Marc Detollenaere

Dear Forum,On stems of Arctium, I found some downy

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

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Hymenoscyphus on Betula leaf
Juuso Äikäs, 29-09-2022 17:25
A finding from a couple days ago: a few white Hymenoscyphus fruitbodies were growing on a fallen, decaying Betula leaf amid Sphagnum in a boggy forest.

Asci 8-spored, without croziers, IKI+ blue. Paraphyses cylindrical, with medium sized round VBs. Ectal excipulum of textura prismatica. The spores measure 14.5 - 18 × 4.8 - 5.2 µm and are without contents (uninucleate?).

Any thoughts?
  • message #73974
  • message #73974
Hans-Otto Baral, 29-09-2022 20:10
Hans-Otto Baral
Re : Hymenoscyphus on Betula leaf
Well documented but I have no idea at the moment. Would need to scroll my folders.
Juuso Äikäs, 29-09-2022 20:15
Re : Hymenoscyphus on Betula leaf
Ok, I'll search there later. Any idea what folder this might belong to? Hymenoscyphus s.str.?
Marja Pennanen, 29-09-2022 20:23
Re : Hymenoscyphus on Betula leaf
Hei,

muistankohan vuosien takaa. Olisiko H. phyllogenus valkoinen lehdillä ja yleisempi epiphyllys on taas keltainen. Onhan niitä tosin muitakin...

Terkkui: Marja
Juuso Äikäs, 29-09-2022 20:34
Re : Hymenoscyphus on Betula leaf
Kiitti vinkistä! Tsekkaan jos sopisi.
Hans-Otto Baral, 29-09-2022 20:55
Hans-Otto Baral
Re : Hymenoscyphus on Betula leaf
Indeed, H. phyllogenus is a very good idea!! Thanks Marja.
Juuso Äikäs, 29-09-2022 21:08
Re : Hymenoscyphus on Betula leaf
Yes, that seems to fit!