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16-09-2015 20:09

Calycellina (?) on bark of Fagus or Pyrenomycete
Andreas Gminder Andreas Gminder

Hello,   today I found a small white Hyaloscyph

16-09-2015 20:18

Psilachnum (??) on cut surface of Fagus stem
Andreas Gminder Andreas Gminder

Hello, another one which puzzles me. Macroscopic

17-09-2015 09:59

Pulvinula
Peter Wilberforce

Dear Ascofrance members,I would appreciate some he

17-09-2015 09:58

Pulvinula
Peter Wilberforce

Dear Ascofrance members,I would appreciate some he

13-09-2015 08:42

no se lo que es
Castillo Joseba Castillo Joseba

en madera de FagusA ver sihay alguna sugerenciaJos

15-09-2015 22:34

Hymenoscyphus
Blasco Rafael Blasco Rafael

Hola, tengo este Hymenoscyphus recogido en rama de

12-09-2015 07:22

literature
Christian Lechat Christian Lechat

Hi to all,does anybody have these papers: Dickinso

14-09-2015 19:54

Crumenulopsis ?
Elisabeth Stöckli

Bonsoir,Récolte sur bois de Pinus (tourbière)Apo

14-09-2015 00:16

Pyreno on decorticated wood
Lepista Zacarias

Hi everyone,I found this pyreno growing on the woo

14-09-2015 15:30

Asco on Solidago virgaurea
Jakob Schneller Jakob Schneller

 i have difficulties to identify it. Spores 14-1

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Problematic yellow asco?
Mirek Gryc, 20-05-2020 10:57

Hello all.
I found two collections of this genre yesterday. The first grew on dead shoots Reynoutria japonica. A second group of fruiting bodies found on Helianthus tuberosus. There are small differences between them in the content of drops in the spores but I suspect it is the same species.
The first thought is Cyathicula. The size of the spores matches C. cyathoidea but as you can see the other features are not.
I was also thinking about Hymenoscyphus repandus, which I do not know yet, but it seems to me that the characteristics do not suit him too?
greetings
Mirek
PS: photos in a moment
Mirek Gryc, 20-05-2020 11:00
Re : Problematic yellow asco?
The first collection from Reynoutria japonica
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Mirek Gryc, 20-05-2020 11:01
Re : Problematic yellow asco?
Second collection from Helianthus
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Hans-Otto Baral, 20-05-2020 11:13
Hans-Otto Baral
Re : Problematic yellow asco?
Hi Mirek

does your 7th pic show a blue reaction of the excipulum?

Not sure if the two are the same as the paraphysis contents and curvature differ.

I think a Hyaloscyphaceae s.l.

Zotto
Mirek Gryc, 20-05-2020 11:31
Re : Problematic yellow asco?
Hi Zotto

Yes, the blue excipulum reaction is seen in the picture.

The reaction occurred only in one fruiting body. Also, I see several differences between them although the macroscopic features are identical.
I have no idea.
Mirek
Hans-Otto Baral, 20-05-2020 11:49
Hans-Otto Baral
Re : Problematic yellow asco?
The currved paraphyses of the first remind me a bit of Loricella in my Calloriaceae folder. I cannot clearly see the margin for any hairs.

A blue reaction occurs e.g. in Cistella grevillei or Psilachnum lanceolatoparaphysatum, but all these are probably outruled.
Mirek Gryc, 20-05-2020 12:04
Re : Problematic yellow asco?
The problem is that I haven't seen the hair either. Neither in one nor in the other collection.
Thank you, Zotto.
I will search in the catalogs you suggest.
Mirek