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17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

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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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