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19-01-2021 15:09

Khomenko Igor Khomenko Igor

Hi, On spruce (Picea) needles, small, white disco

20-01-2021 12:29

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en Galicia

14-01-2021 18:36

Edvin Johannesen Edvin Johannesen

Apothecia up to 0,5 mm, on decayed wood of Populus

20-01-2021 20:00

Garcia Susana

Hola, Estoy buscando la descripción de Mycosphae

19-01-2021 10:27

Enrique Rubio Enrique Rubio

Could this synnematous hyphomycete be a Spiropes s

14-01-2021 17:08

Malcolm  Greaves Malcolm Greaves

A large group of what I expected to be Peziza were

20-01-2021 19:56

Enrique Rubio Enrique Rubio

Perithecia non stromatic, clypeate, inmersed under

20-01-2021 15:58

Juuso Äikäs

Last February I found these fungi growing on a fal

06-01-2021 21:01

Andrew N. Miller Andrew N. Miller

Dear Friends,  I would like to obtain a collectio

20-01-2021 11:04

Marek Wolkowycki Marek Wolkowycki

Bialowieza Forest, on dead fruiting bodies of Skel

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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.