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11-03-2026 17:36

Help for Genus and Species ID
Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

09-02-2026 22:01

Sp
ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 16:48

Saccobolus minimoides ?
Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

11-03-2026 14:14

Scopinella on Dryas octopetala
Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Thyridaria sp.
Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

10-03-2026 18:08

Orange discs on Arctium
Marc Detollenaere Marc Detollenaere

Dear Forum,On stems of Arctium, I found some downy

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

Phaeohelotium parasulphuratus ?
éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

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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