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21-12-2025 01:54

Ophiostoma
David Chapados David Chapados

Hi,Would it be possible to find the species with t

20-12-2025 23:08

Malvipezia pauli !
Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

20-12-2025 15:47

Greenish asco on pine?
Mirek Gryc

Hi.These grew on pine wood that was heavily covere

20-12-2025 10:49

Small resin asco?
Mirek Gryc

Hi. „I doubt it is possible to identify this ti

18-12-2025 21:17

Two collections of yellowish discs on bare ground
Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

indet. Rutstroemiaceae sp. on unk. fallen leaves
Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Peziza vers varia ?
Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Polydesmia fructicola ?
Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

18-12-2025 18:07

Phaeoisaria like?
Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Asexualfungi I : a book announcement
Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

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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!