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02-07-2025 18:45

Sur Osmunda regalis
Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 17:26

hymenoscyphus albidus
Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

02-07-2025 09:32

Searching of a paper from The Mycologist
Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Septoria on Impatiens glandulifera
Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Help with a Pleosporal.
Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Black erumpent on Populus (Ascodichaenaceae?)
Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Pezizales --Pyronema?
Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

RECHERCHE ARTICLE
ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

is this a Hymenoscyphus on Nothofagus?
Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

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Hymenoscyphus with squarrulose stem
Edvin Johannesen, 19-09-2023 22:57
Edvin JohannesenIn Tilia, Quercus, Corylus forest on calcareous soil in Oslo region, Norway. On dead deciduous wood (twig). Stems of apothecia brown-squarrulose. Spores 15(-17)x(3.5-)4(-5) micr, multiguttulate with an aguttulate central region, eventually becoming 1-septate. Paraphyses multiguttulate, ca. 8 micr. across. Asci 8-spored, IKI- (Lugol). Can Hymenoscyphus have a stem like this?
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Edvin Johannesen, 19-09-2023 22:58
Edvin Johannesen
Re : Hymenoscyphus with squarrulose stem
Images in water.
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Hans-Otto Baral, 20-09-2023 09:41
Hans-Otto Baral
Re : Hymenoscyphus with squarrulose stem
IKI- I would not believe, are you sure? It reminds me of H. virgultorum as I interpret that species. I think characteristic are the spores with only small LBs. Croziers should be absent in that species.
Edvin Johannesen, 20-09-2023 11:55
Edvin Johannesen
Re : Hymenoscyphus with squarrulose stem
Thanks, Zotto. I expected you would not believe it. I was surprised myself. I will check again. Is this type of stem typical/common in H. virgultorum? I did not see croziers, correct.
Hans-Otto Baral, 20-09-2023 11:58
Hans-Otto Baral
Re : Hymenoscyphus with squarrulose stem
I think in H. scutula can it occur as well as in H. macroguttatus, though perhaps not as prominent as in your find. Anyway I doubt if it is constant.
Edvin Johannesen, 20-09-2023 12:25
Edvin Johannesen
Re : Hymenoscyphus with squarrulose stem
You were of course right. I tested with Baral'sche Lösung and I see a weak blue ring/pore in some asci. I wonder if my Lugol has lost its potency. What is your experience with this? It is stored in a tiny dark brown bottle, but it's several years old (I don't do ascos every day).

Thanks again!
Hans-Otto Baral, 20-09-2023 12:43
Hans-Otto Baral
Re : Hymenoscyphus with squarrulose stem
You see it at the colour, it must be brown in a hyaline bottle, not pale yellow.
Edvin Johannesen, 20-09-2023 13:08
Edvin Johannesen
Re : Hymenoscyphus with squarrulose stem
OK. Yes there is a distinct colour difference between the Baral'sche and the Lugol bottle.