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14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

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

12-07-2025 16:45

Sur écorce de Hêtre
Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

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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