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27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

01-03-2026 15:31

Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

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Hymenoscyphus on wet wood
François Valade, 14-09-2016 20:29
François Valadehello
last saturday I found on wet wood (maybe Carpinus) laying in a wet pond, a greyish ascomycete. I am unable to choose any genus for this collection
apothecia, 1-2 mm, greyish, reddening when aged, turbinate, sessile
asci 110-125x13µm, IKI negative, with crozier
paraphysis with refractive content, 2 µm wide
spores with many guttules, (16)-20-22x4,5-5 µm
excipulum medular textura intricata, external cells, colored under the lens, piriform, globose.
any suggestion is welcome
thank you
best wishes
François
  • message #44924
  • message #44924
Hans-Otto Baral, 14-09-2016 20:36
Hans-Otto Baral
Re : Helotiale on wet wood
Hi Francois
this seems to be my Hymenoscyphus  (Phaeohelotium) griseobrunneus. But this species must be without croziers. I am not sure that yours has. Do you have a clearer pic? This one might be H-.
Zotto
François Valade, 14-09-2016 20:59
François Valade
Re : Helotiale on wet wood
Thank you Zotto.
The species is not keyed in both keys you provided, so it is probably a new species. What is its current status?
I sent you in private a higher quality picture of the ascus base. I still have the collection in the fridge so I will do another trial to show croziers, if there is really ones.
cheers
François
Hans-Otto Baral, 14-09-2016 21:52
Hans-Otto Baral
Re : Hymenoscyphus on wet wood
I am quite sure this shows asci without croziers, so it is clearly my species.

My key is undoubtedly much too old, though I saw this species the first time in 2006.

One of the hundreds of species that cannot be identified with the literature. But this group is complex, you see it in my Phaeoh.-folder.
Michel Hairaud, 14-09-2016 22:24
Michel Hairaud
Re : Hymenoscyphus on wet wood
Bonsoir François, et Zotto,

J'ai récolté cette espèce en août 2009, avec ces caractéristiques (H- et IKI-) dans une zone tourbeuse du Morbihan , également sur du bois très dégradé.
(Cf. images 23 XIII 09 1-5 dans le dossier de Zotto )

Amitiés
Michel