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Mot de passe perdu? S'inscrire

31-12-2025 19:27

Baited fungus, help with ID.
Spooren Marco Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

En Rosmarinus
Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

30-12-2025 16:44

Tubercularia aff. lateritia
Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

Sordariomycetes
éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Asco brun sur renouée du Japon (Reynoutria japonica) (d'Albert Grobelny)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Starform
Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Propolis sp. on Pinus sylvestris
Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Pyrenomycete on rosemary
Josep Torres Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Lamprospora ? laquelle ?
Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

12-11-2021 00:03

White dots on pine
Lepista Zacarias

Hi everybody,A week ago in my fiels trip I noticed

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Hymenoscyphus macroguttatus on Aruncus dioicus?
Johan Myhrer, 31-08-2018 14:16
Yesterday I found what I concluded to be H. macroguttatus in a garden in central Sweden. Just a few small fruitbodies on a standing broken stem of Aruncus dioicus by a south facing wall. Unfortunately but a few free spores could be measured; ~17-19x4µm, with 2-3 large guttules. Asci 87-93µm, araising from croziers(?), IKI+ with slight blue reaction. Paraphyses with numerous guttules.
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Hans-Otto Baral, 31-08-2018 15:25
Hans-Otto Baral
Re : Hymenoscyphus macroguttatus on Aruncus dioicus?
In my opinion the asci are simple-septate. You don't have free spores to better see the spore shape?
Johan Myhrer, 31-08-2018 16:15
Re : Hymenoscyphus macroguttatus on Aruncus dioicus?
A closer look at the largest fruitbody (~1,5mm) with lots of free spores and they actually measure 20-22x4-4,5µm. I got very unsure about the paraphyses too now, they seem to be wrinkly?
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Hans-Otto Baral, 31-08-2018 17:27
Hans-Otto Baral
Re : Hymenoscyphus macroguttatus on Aruncus dioicus?
The paraphysis is dead and the plasma got granular and contracted.
The spores are clearly scutuloid, partly with short setulae at the ends.
This should belong in the H. scutula complex, it is not H. macroguttatus.
Johan Myhrer, 31-08-2018 17:50
Re : Hymenoscyphus macroguttatus on Aruncus dioicus?
Thank you Zotto!