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18-05-2026 10:13

Teleomorph of Botrytis cinerea?
Lieve Deceuninck Lieve Deceuninck

Dear forum members,I identified this as the teleom

17-05-2026 22:09

Mollisia sp
éric ROMERO éric ROMERO

Bonjour tous, Je sollicite vos avis pour ce Molli

17-05-2026 19:05

Coenogonium pineti
Thomas Flammer

I have found this tiny 200 ym cup shaped apothecia

17-05-2026 16:41

Lachnum
Margot en Geert Vullings

We found this Lachnum on an old Rubus stem.Fruitbo

05-04-2026 22:46

blue mould from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

15-05-2026 13:33

Cistella geelmuydenii cf
Sylvie Le Goff

Bonjour à tousJe serais très reconnaissante enve

16-03-2011 14:31

Peziza cf ampelina
roman vargas alberto

Hi. I would like some opinion about this Peziza

14-05-2026 05:36

Lachnum subvirgineum (?)
Ethan Crenson

Hi all,  I haven't paid much attention to Lachnu

10-05-2026 23:17

Scleromitrula (?) from decaying leaves of Fagus/Acer
Andreas Gminder Andreas Gminder

Hello,today we found in a moist steep decidous for

11-05-2026 12:32

Hélotiale à paraphyses à exsudat brun jaunâtre
Bernard CLESSE Bernard CLESSE

Pourriez-vous m'aider à identifier cette héloti

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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.