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18-04-2024 18:52

Daldinia sp.
éric ROMERO éric ROMERO

Bonjour, J'ai beoin d'éclairage(s) pour ce Daldi

13-04-2024 11:44

Yellow-orange on Solidago = Pseudohalonectria longirostrum
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, April 2024

16-04-2024 17:43

Peziza vesiculosa ???
Giovanni ANTOLA Giovanni ANTOLA

Bonjour,Trouvé sous paille humide, autour d'un je

14-04-2024 20:04

Gyromitra parma?
Manak Roman

Hi all,I have two very similar finding last weeken

17-04-2024 10:44

Lachnum virgineum sur cône de pin sylvestre à confirmer
Bernard CLESSE Bernard CLESSE

Juste à côté du cône avec "Hyphodiscus ayelii"

16-04-2024 22:53

Hyaloscyphaceae sur cône de pin sylvestre (Pinus sylvestris)
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

14-04-2024 22:58

Bactridium flavum
B Shelbourne B Shelbourne

• Bactridium flavum (anamorph): Distinctive macr

15-04-2024 14:37

Cyphelle sp ?
Eric Rousseau

Bonjour,Je sais que les cyphelles ne sont pas des

13-04-2024 21:10

Cistella on dicot
B Shelbourne B Shelbourne

• Genus Cistella on dicots: Habitat, macro, hair

08-04-2024 19:57

Espèce inconnue
Elisabeth Stöckli

Bonsoir,Récolté au bord du chemin, apothécie 0.

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yellow-green discomycete on living Carex
Khomenko Igor, 12-01-2021 06:29
Khomenko IgorHi,
I found this discomycete in two instances in September on the living roots of Carex.
If someone can point me to the right genus.

Apothecium was up to 3.7mm.
Asci croziers(+), IKI+b. The apical apparatus is Hymenoscyphus-type.
Ascospores 20 - 30 × 4.4 - 5.3 µm


#461 - https://inaturalist.ca/observations/59262819
#461B - https://inaturalist.ca/observations/59945254 (extra pictures in CR)


Thanks you,
Igor

Hans-Otto Baral, 12-01-2021 07:31
Hans-Otto Baral
Re : yellow-green discomycete on living Carex
Hi Igor

I think this is Phaeohelotium epiphyllum, although the spores are a bit long.

You did not study the excipulum at flanks?

Also the second sample I think is the same. Here the living paraphyses are missing (the best difference against P. monticola).

Zotto
Khomenko Igor, 12-01-2021 08:50
Khomenko Igor
Re : yellow-green discomycete on living Carex
Thank you Zotto,

I didn't know that it could be parasitic on living plants.
I didn't do section because I have troubles understanding what I'm seeing.
I collected Phaeohelotium epiphyllum near both locations. Near the first (#461) on a big rotten log and near the second (#461b) on Fagus and Acer leaves. In both cases they were bright yellow, with shorter spores and fitted well with the description.
Yes, the both specimens were the same. For the second specimen I also did in Congo Red, so I could see croziers better.
I head about P. monticola, but haven't seen it yet. It was a good year and I saw a lot:
Hymenoscyphus albidus, H. imberbis, H. fructigenus, H. kathiae, P. menthae, P. fulvidulum, H. scutula, H. subferrugineus,
maybe P. fagineum and a few more I can't id yet or uncertain.
For instance like this gorgeous H. vacini (#400) on Acer petioles and other leaves:
https://inaturalist.ca/observations/57788066


Regards,
Igor.

Hans-Otto Baral, 12-01-2021 09:37
Hans-Otto Baral
Re : yellow-green discomycete on living Carex
H. monticola cann be excluded from the paraphysis contents, at least European specimens (I remember it is an American sepcies).

Yours could be something different - DNA would show.

You say H. vacini but this is certainly not. H. vacini has short stipes and a met-like black exterior, also no yellow disc.
Khomenko Igor, 13-01-2021 02:48
Khomenko Igor
Re : yellow-green discomycete on living Carex
Thank you Zotto,
It looks like it is more complicated than I can handle right now.