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27-04-2026 20:52

Mollisia or related genus from Portugal - with quite peculiar character
Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Micropodia pteridina?
Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

another anamorph on monocotyleous remains from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

bright green minute anamorph on Citrus aurantius-twig from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

anamorph on monocotyleous leaves from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Spiral conidial crust
Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Microdiplodia henningsii
Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

Ramularia sp ?
William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

lachnum pudicellum
Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

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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