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25-08-2025 17:37

Petit asco indéterminé
François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

24-08-2025 21:30

Orbilia dryadum ?
Ethan Crenson

Found yesterday in a New Jersey park.  An Orbilia

24-08-2025 21:59

Podospora
Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

21-08-2025 18:09

Semble Thecotheus
Edmond POINTE Edmond POINTE

Bonjour Amis mycologues.Trouvé sur crottin de che

22-08-2025 18:10

Protocrea ?
Ethan Crenson

Hello everyone,  I found what I think might be P

20-08-2025 19:04

Adelphella babingtonii - lacking much brown pigment
Ethan Crenson

Hello, This asco was found on the same wood as my

22-08-2025 08:41

Literature request
Masanori Kutsuna

Hello.Can anyone help me to get this article?Liu H

21-08-2025 02:18

Helicoma muelleri?
Stefan Jakobsson

On a necrotic section of a living Tilia cordata I

18-08-2025 23:15

S.vitreola?
Zoe Vélez Zoe Vélez

Hola foro, gracias por aceptar la creación de mi

19-08-2025 20:58

Hymenoscyphus ? on very wet wood
Ethan Crenson

Hi all, Here is what I believe to be a Hymenoscyp

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Nectriopsis? spec.
Stefan Blaser, 01-12-2020 19:29
Dear all,

I found this Nectriopsis? on a Stroma of Nemania serpens.


Macro: Perithecia white, glabrous, subglobose, 130-170 µm broad and 140-180 µm high, very readily collapsing when beginning to dry. When colapsed yellowish.


Micro: Asci cylindrical, 30-37 x 3.5-4 µm, apically flattened, 8-spored. Spores 5-6.5 x 2.4-2.8 µm, two-celled, hyaline, finely verrucose (difficult to see).


I hope that somebody can shed some light on this collection.


Many thanks and best wishes,


Stefan

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Franz Berger, 01-12-2020 22:44
Franz Berger
Re : Nectriopsis? spec.
Nectriopsis are not glabrous on the outside, but hairy, at least a few hairs.
Christian Lechat, 02-12-2020 07:41
Christian Lechat
Re : Nectriopsis? spec.
Hi Stefan,

first of all, we have to know if the ascomata change colour in KOH or lactic acid.

Your first image suggests that there are some hairs on ascomatal wall, could you check this feature?

In addition, an image of a mature ascus with ascospores would be useful.

At first glance, your fungus could be a species of Nectriopsis.

Best wishes,

Christian
Stefan Blaser, 02-12-2020 08:38
Re : Nectriopsis? spec.
Thank you Christian and Franz,

I have indeed found hairs that are thick-walled and 15-25 x 2-3 µm.

I did not observe any color reaction in KOH or lactic acid, however, the specimen has been dry for over 1 months now!!

Alas, asci are in a poor state and I could not find a mature ascus that looks acceptable.

The collection is maybe in a state beyond identification. I can accept that...

Many thanks,

Stefan
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