Accès membres

Mot de passe perdu? S'inscrire

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

« < 1 2 3 4 5 > »
Claussenomyces atrovirens?
Mirek Gryc, 22-01-2021 19:09
Hi
The collection is from 2016, but I only microscoped it today.
According to the available keys, Claussenomyces atrovirens seems to be the most likely. I don't know its this genre so I'm afraid it might be something else?
Most of the spores with 7 septas, a large proportion of 3-5 sept, and a few more than 7 septas, I found a maximum of 9 septas.
Spore dimensions:
(13.5) 14.2 - 19.3 (24.4) × (2.6) 3.1 - 3.7 (4.1) µm
Q = (3.5) 4.6 - 6 (6.8); N = 17
Me = 17 × 3.3 µm; Qe = 5.2

19.88 3.68
18.67 3.09
24.36 3.58
14.22 4.07
17.81 3.12
17.96 3.83
16.37 3.01
13.46 2.65
14.57 3.12
16.19 3.33
16.36 3.21
16.49 3.21
13.50 3.17
19.33 3.17
14.63 3.06
17.71 3.08
17.01 3.69


Croziers (+)
J (lugol) (-)


Mirek

  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
  • message #67232
Hans-Otto Baral, 22-01-2021 20:43
Hans-Otto Baral
Re : Claussenomyces atrovirens?
Interesting collection. Could you make a KOH mount for showing the spore contents?

This does not produce ascoconidia but is similar to C. prasinulus. We have one with cream to pale greenish apothecia, called "Waldhaff", a place in Luxembourg. It was on Betula and Alnus wood.

What's the substrate?
Mirek Gryc, 23-01-2021 07:01
Re : Claussenomyces atrovirens?
Hi Zotto.
I was a bit surprised because the collection is already a few years old, but the features are clearly visible and the ascomata is in perfect condition :)
As for the substrate, it was a very rotten stump whose species I could not define. However, due to the nature of the tree cover, it must have been deciduous. Both Betula and Alnus are very likely.
I took pictures in KOH and Lugol but I have them on another computer. In the evening, when I come back from work, I will try to present them.
Mirek
Mirek Gryc, 23-01-2021 16:27
Re : Claussenomyces atrovirens?
Unfortunately, it turned out that I didn't take good enough pictures of ascus in KOH.
If that's important, I'll try to do it a bit later.
Now I am posting a few more photos (koh, Lugol, dye), maybe they will explain something?
greetings
Mirek
  • message #67239
  • message #67239
  • message #67239
  • message #67239
  • message #67239
  • message #67239
  • message #67239
  • message #67239
  • message #67239
  • message #67239
Hans-Otto Baral, 23-01-2021 17:48
Hans-Otto Baral
Re : Claussenomyces atrovirens?
I think this is sufficient, the oil content in the spores is now visible.

I would be pleased to take the collection data too. When it comes to a paper, perhaps in some years, we would like to include your data too. As far as I see at the moment, it is this same species. I am not sure of Luis wants to gain a sequence - we will see. Please keep this fine material.

Zotto
Mirek Gryc, 23-01-2021 18:35
Re : Claussenomyces atrovirens?
date of collection: 2016.08.05
Poland; Podlaskie voivodeship; Supra?l commune.
The village of Ogrodniczki, 300 m S
Mid-field tree cover, deciduous stand
Substrate: I suspect a stump from Populus, but other hardwoods also possible (Betula, Alnus?)

While reading the forum, I have already realized that Luis is also interested in this genre.
If Luis wants to do a sequence, I'll gladly send him part of the collection. I'm just asking for an address.
Mirek

Quijada Luis, 23-01-2021 19:22
Re : Claussenomyces atrovirens?
Dear Mirek
Nice collection, I would be very happy if you could send me part of your collection to work by myself the morphology and also get DNA. If that possible? if so, please write me an email to lquijull@gmail.com and we can talk more about your collection and my project in this genus.
Best wishes
Luis