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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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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