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29-06-2016 15:18

Scopinella
Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Scopinella?
Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

Gnomoniaceae
David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Literature search
Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

Nectriaceae on Fagus
David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Arachnopeziza delicatula
Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Helotiales on Pinus needles
Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Mollisia sp?
Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Unknown helotiales on Abies bark
Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

minute hairy discomycete from Portugal - Fuscolachnum?
Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

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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!