Accès membres

Mot de passe perdu? S'inscrire

20-02-2026 18:47

Marc Detollenaere Marc Detollenaere

Hello Forum,On rotten wood of Fagus, I found some

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

17-02-2026 17:26

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous, Je recherche cette publication :

« < 1 2 3 4 5 > »
Hymenoscyphus? from a "wet" place
Marja Pennanen, 08-09-2010 21:24
Hello,
while looking for the pink Mollisia I naturally stumpled upon other species including Mycena tubarioides, but also some ascos.
I found these on some leaves. Somehow it didn't fit my former memries of the habitus of H. epiphyllys on leaves. So I picked a specimen.
These are 2-4 mm wide:
  • message #12814
Marja Pennanen, 08-09-2010 21:26
Re:Hymenoscyphus? from a
The spore estimate is 10-15x4-5, with two big droplets.
The myxospores are from Lycogala epidendrum and 6 to 7.5 µm wide.
As you can see, I should consider some othet light options for the Old Russian :)
  • message #12815
Marja Pennanen, 08-09-2010 21:30
Re:Hymenoscyphus? from a
But the oddity can be figured in this photo.
It had huge asci. My estimate is something like 200x9 (IKI blue). Those brown myxospores are 12-14 wide. So you can estimate yourself. Maybe you get some other figures ;)
The paraphyses were about 2 micrometers wide and exceeded asci.

Strange for me, but hopefully not for you folks: Marja
  • message #12816
Stip Helleman, 08-09-2010 23:18
Stip Helleman
Re:Hymenoscyphus? from a
Hi Marja,
Odd indeed, i consider it to be close to Hymenoscyphus/Phaeohelotium monticola, but the asci are too tall i think
cheers Stip
Miguel Ángel Ribes, 08-09-2010 23:19
Miguel Ãngel Ribes
Re:Hymenoscyphus? from a
Hello Marja

It looks like a Bisporella sp.

Miguel Ángel
Stip Helleman, 08-09-2010 23:29
Stip Helleman
Re:Hymenoscyphus? from a
Good Shot Miguel,
i think you are right, what type of apical ring this species has? Calycina for Bisporella.
cheers Stip
Hans-Otto Baral, 08-09-2010 23:38
Hans-Otto Baral
Re:Hymenoscyphus? from a
Leaves sound strange to me for a Bisporella! Maybe Stip was not that wrong. I suggest this to be Helotium eichleri = Pachydisca pilatii. So it really needs to examine the apical ring shape, and also the contents of the paraphyses. I think I see a bit yellow-orange droplets. And spores could well be 5-6 µm wide. Asci in eichleri are over 200 µm.

The species is usually confined to conifers but I saw it also on a moss (Calypogeia) or on soil among Dicranella.
Zotto
Marja Pennanen, 09-09-2010 08:06
Re:Hymenoscyphus? from a
Thank you folks,

I can't see anyhing cleary until I find a better light for replacement of the one, that got the power from the broken transformer. So oil immersion is not an option now, it would not bring anything new (except more inaccuracy) to views. I'll keep a part of the specimen fresh and try to find something.

Everything seems a little bit comfortless now while the even before poor microscope is in such a bad condition and I got to return the loaned one.
But then I thought how much better things are than a year or two ago.
I've got a microscope anyway and it shows still something and I've got you folks :)

Thank you for being there: Marja
Hans-Otto Baral, 09-09-2010 10:26
Hans-Otto Baral
Re:Hymenoscyphus? from a
If you keep the apos fresh for some time you will probably get germination stages. In H. eichleri the spores form nice globose conidia, which would support my idea.

Zotto
Marja Pennanen, 09-09-2010 22:07
Re:Hymenoscyphus? from a
Hello,
I visited university today in a hurry.
Looked a little this on a university microscope and took only few photos, but managed to get one from the asci apex in Meltzer.
The asci were about 150-200x8-10 and spores 12-16 x5-6 (just few measurements).

Still one more day busy: Marja
  • message #12829
Hans-Otto Baral, 09-09-2010 22:20
Hans-Otto Baral
Re:Hymenoscyphus? from a
Very good, Hymenoscyphus-type.

Zotto