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20-03-2026 12:53

Eutypa spec. (?)
Stefan Blaser

Hello everybody, In the field, from distance, my

19-03-2026 19:34

Xylariaceae? on Carpinus betulus wood
Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

Myriosclerotinia curreyana?
William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

Lasiobelonium corticale ?
François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

"Lasiosphaerioid"
Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Massarina on Corylus
Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Orbilia on Celtis occidentalis
Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Pyréno sur branche morte de chêne
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

18-03-2026 17:22

Literature search
Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Sporodochial anamorph on Populus with angular, pigmented conidia - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10505643

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Reddening asco
Bregtje Miedema, 05-02-2020 11:19
Goodmorning,

From the Leeuwarder bos (Leeuwarden, Netherlands) a small asco, very reddening, no stipe. Asci IKI+, Croziers+, biserate, 70-95 x 6-7 µm. Parafyses septate. Spores with at least two drops and mostly 1 sept. 11-13 x 2-3 µm.

Can someone tell me what species this is (maybe Calycina?) ?

Thank you and kind regards,

Bregtje Miedema

Netherlands
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Michel Hairaud, 05-02-2020 11:31
Michel Hairaud
Re : Reddening asco

Bonjour Bregtje,


These reddening apos remind me of Calycina heterospora but Congo red is not the best to observe cells contents (in spores and paraphyses) .


Indeed the spores would be septate and with oil drops in C. heterospora.


 


Amitiés. Michel

Bregtje Miedema, 05-02-2020 13:05
Re : Reddening asco
Goodafternoon Michel,

Here are some pictures made in water.

Maybe that helps.

Thank you,

Bregtje Miedema
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Michel Hairaud, 05-02-2020 14:34
Michel Hairaud
Re : Reddening asco

I am not sure from image 10 but spores in image 11 could fit .


I join pictures showing paraphyses and ejected spores in water and paraphyses content un Cresyl blue.


Michel


 

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Bregtje Miedema, 06-02-2020 12:53
Re : Reddening asco
Hello Michel,

Here some pictures made in Cottonblue and KOH 5%.

I do not have Cresylblue.

Bregtje
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Michel Hairaud, 06-02-2020 13:47
Michel Hairaud
Re : Reddening asco

Cotton blue and KOH kill cells and do not bring valuable information in that case.


From image 15 , though, one can see that excipulum cells would match Calycina's , as on this picture in water.


Michel

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Bregtje Miedema, 07-02-2020 20:45
Re : Reddening asco
Hello Michel,

These two pictures are from the least red asco left, in water.  The asco's are getting in a rather bad shape now, if they weren't already.
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Michel Hairaud, 07-02-2020 22:31
Michel Hairaud
Re : Reddening asco

You are right, Bregtje, the apos were already in a rather bad shape and cells appear dead now . I'm afraid these last pictures will not allow more to say.


Amitiés. Michel

Bregtje Miedema, 08-02-2020 09:18
Re : Reddening asco
Thank you for your help, Michel.

It was a very interesting puzzle.

Kind regards,

Bregtje