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22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

24-04-2026 03:16

Trinacrium robustum?
David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

Fungus sp
François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Peziza
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

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Yellow disco on Miscanthus sinensis
Masanori Kutsuna, 27-01-2014 03:28
Hello everybody,

I found yellow disco on Miscanthus sinensis in Japan, November,  2013.

Apothecia gregarious on dead stems near the ground,
up to 5 mm diam., pale yellow., somewhat gelatinous (like Ascocoryne cylichnium).
Stalks up to 8 mm., whitish.
Asci IKI+, 180-220 × 15-20 microm.
Paraphyses 1.5-2.0 microm., multiguttulate, slightly clavate to 3 microm.
Ascospores fusoid, 50-65 × 6.5-8.5 microns.
Medullary hyphae about 3-6 microns diam., space filled with gel.


Very long spores seem to be characteristic, but I have no idea what it is.

Masanori KUTSUNA

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Hans-Otto Baral, 27-01-2014 09:52
Hans-Otto Baral
Re : Yellow disco on Miscanthus sinensis
You are sure with the measurements? Never heard of a Hymenoscyphus with such big spores and asci.
I have nothing on Poaceae in my database with such spore size.

Would be good to look for the croziers. The excipulum looks really gelatinized. The cortical hyphae are guttulate and probably the paraphyses are also when alive. Do you have a photo of them?
Zotto
Masanori Kutsuna, 28-01-2014 00:41
Re : Yellow disco on Miscanthus sinensis
Thank you, Zotto.

Yes, this spores are very big, nearly twice as long as A. cylichnium's spores,
and paraphyses are guttulate.

This is an enigmatic species for me.  

KUTSUNA

Hans-Otto Baral, 28-01-2014 08:55
Hans-Otto Baral
Re : Yellow disco on Miscanthus sinensis
Did you contact Tsuyoshi Hosoya about it? Maybe he can help?

Zotto
Masanori Kutsuna, 28-01-2014 09:22
Re : Yellow disco on Miscanthus sinensis
In Japan, there isn't professional forum on ascomycetes like here,
so, I sometimes post to ASCOFrance forum..
And, this forum replies very quickly.

KUTSUNA