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11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

06-09-2025 21:40

David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

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marginate apothecia
Stefan Blaser, 29-01-2013 12:15
Hello everybody

I do have one more "burden of the past" where I don't get to an identification and hope for your help.


Description: Apothecia dark, hymenial disc almost black, up to about 0.7 mm in diameter. Margin distinct, raised somewhat above hymenium. Margin and Excipulum brown. Hymenium very densely agglutinated, gelatinous. Brown epihymenial matter. Spores are 15-18 x 4-5 µm, brown, smooth(?), two-celled, somewhat thick-walled. Subhymenium brown. Excipulum with mostly globose to ellipsoid or sometimes nearly rectangular cells, mostly hyaline to somewhat brownish. Margin distinct in microscopic composition from Excipulum and Hymenium, very gelatinous, with very indistinct prolonged elements (see photo).


Substrate: Decorticated deciduous wood, most probably Alnus or Corylus


To me it resembles some lichens with its margin, but I recognize no thallus.


Any help is welcome


Stefan

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Hans-Otto Baral, 29-01-2013 13:00
Hans-Otto Baral
Re : marginate apothecia
Dactylospora? Gib mal IKI zu.

Zotto
Stefan Blaser, 29-01-2013 17:36
Re : marginate apothecia
Hallo Zotto

Da ist noch ein Schnitt in Melzer (Habe erst ab Donnerstag wieder IKI zur Verfügung). Auf die Gattung Dactylospora bin ich auch mal gestossen, habe aber kaum Literatuir gefunden.

Stefan
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Hans-Otto Baral, 29-01-2013 20:41
Hans-Otto Baral
Re : marginate apothecia
Da wäre ich jetzt nicht sicher, ob das Jod überhaupt an den Asci ankam. In Dactylospora sollten die Asci auch in Melzer sehr stark blauen.
Alain GARDIENNET, 30-01-2013 08:58
Alain GARDIENNET
Re : marginate apothecia
Probably D. stygia var. stygia ?
Zotto knows it very well and will be ok after iodine reaction, I suppose.
Alain
Stefan Blaser, 30-01-2013 18:33
Re : marginate apothecia
Hello Zotto and Alain

I can detect no evident blueing reaction of the asci. Even if squashed and also not after waiting for some minutes. I can try fresh IKI tomorrow evening, but as you said, Zotto it should also work with Melzer.

What other options are there?

Stefan
Hans-Otto Baral, 30-01-2013 20:23
Hans-Otto Baral
Re : marginate apothecia
Yes, but the yellow iodine should be visible on the photo (plasma staining), otherwise I cannot believe :-)
If yours is rather thin, please try directly in a drop of MLZ.
Zotto