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28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

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

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

01-03-2026 15:31

Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

01-03-2026 17:51

Bruno Coué Bruno Coué

Bonjour,sur vieilles crottes de sanglier en chambr

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Sarcoscypha
Malcolm Greaves, 15-03-2017 17:44
Malcolm  GreavesIs it unusual for the spores of Sarcoscypha austriaca to germinate while still in the ascus? One particular find had lots of spores germinating both outside and inside the ascii.
Mal
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Hans-Otto Baral, 15-03-2017 18:03
Hans-Otto Baral
Re : Sarcoscypha
Germinable spores of all ascomycetes may germinate inside the asci, but only when the asci are dead. Why shouldn't a spore germinate in an ascus when the humidity allows? 

But inside living asci only a few fungi do, by forming ascoconidia. Sarcoscypha does not belong to these.

Living asci are distinctly larger than dead asci, you can easily  make the test with KOH or MLZ, shrinkage is enormous.
Chris Yeates, 15-03-2017 18:19
Chris Yeates
Re : Sarcoscypha
A classic example of forming ascoconidia can be found in Claussenomyces atrovirens.

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Hans-Otto Baral, 15-03-2017 18:31
Hans-Otto Baral
Re : Sarcoscypha
Thanks Chris, you are right for the spores and conidia but the asci are all dead on these pics.

Attached a living and dead ascus of C. atrovirens. The conidia are held together in 8 balls which also contain the remnants of the collapsed ascospores (invisible).
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Chris Yeates, 15-03-2017 18:49
Chris Yeates
Re : Sarcoscypha
Thanks Zotto
I hadn't realised the asci were dead - the photo's were taken in 2013, so I was working backwards when I said that. What are the clues that these are dead? I have edited my former post accordingly.
LG
Chris
Hans-Otto Baral, 15-03-2017 18:58
Hans-Otto Baral
Re : Sarcoscypha
It is a classical example: apical thickening swollen, conidia distributed ácross the entire lumen. Compare my two pics. If you add KOH to the living ascus it will suddenly look light the dead one I posted. f you don't believe, I have a video :-)
Malcolm Greaves, 16-03-2017 10:48
Malcolm  Greaves
Re : Sarcoscypha
Thanks for the information Zotto.
Mal