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02-06-2022 12:52

Peziza - please help.
Sergey Markov

I'm having trouble identifying a specimens of Pezi

01-06-2022 09:02

Litterature request : planche n°465 de Bulliard
Adrien BENOIT à la GUILLAUME

Bonjour, dans le livre Histoire des champignons de

01-06-2022 09:02

Small-spored Coniochaeta on weathered Quercus wood - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10275193

01-06-2022 08:51

Cordycipitaceae anamorphe sur ver luisant (Lampyris noctiluca)
Adrien BENOIT à la GUILLAUME

Bonjour, sur une larve de ver luisant (Lampyris no

31-05-2022 02:53

Lachnum(?) on fern
Stefan Jakobsson

I found a hairy discomycete on an old petiole of A

31-05-2022 10:43

literature request
Lothar Krieglsteiner Lothar Krieglsteiner

Does somebody have a pdf or other file-type of:Hei

30-05-2022 10:54

Coelo on Juncus effusus stems with brown septate conidia -Denmark
Thomas Læssøe

conidiomata immersed. Conidia on short conidiophor

29-05-2022 20:40

Lepteutypa
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte attenante de Ulmus min

25-05-2022 12:06

Strange fungus on Phragmites stems
Enrique Rubio Enrique Rubio

Hi forum.These tiny, gregarious, gregarious, black

27-05-2022 15:22

Pyreno
Joaquin Martin

Hi,I found this Pyreno on fallen branch of Larix.T

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Ciboria-like apothecium on deciduous stick
Stefan Jakobsson, 11-08-2022 00:45
On a thin deciduous stick (Salix/Alnus/Betula) on moist sand I found a light brownish grey apothecium 4 mm diam. The excipulum is t. globulosa and the medulla t. intricata. The spores are (15.2)15.7-18.0(19.6) × (4.5)4.7-5.4(5.7) µm with many medium sized guttules. The asci are 128-152 × 7.1-11.9 µm and the praphyses are filled with low refractive guttules.

I have difficulties finding even a genus; it has much in common with Ciboria but I don't think the spores fit in.


I would appreciate opinions on this one.


Stefan

  • message #73663
  • message #73663
  • message #73663
  • message #73663
Hans-Otto Baral, 11-08-2022 07:50
Hans-Otto Baral
Re : Ciboria-like apothecium on decoduous stick
Yes, clearly sclerotiniaceous. Although very well documented, I have no clear idea. Spore guttulation together with globulosa could point to Rutstroemia bolaris, but that is only known from Carpinus and its spores are much larger and the VBs in the paraphyses brownish and elongated.  Perhaps you can clarify the substrate? Alnus and Betula have very characteristic perforations of the vessels (in radial section).
Stefan Jakobsson, 11-08-2022 23:41
Re : Ciboria-like apothecium on deciduous stick
Thank you! I think Salix can be excluded.
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Hans-Otto Baral, 12-08-2022 09:10
Hans-Otto Baral
Re : Ciboria-like apothecium on deciduous stick
Yes! And Betula vs. Alnus is difficult. Perhaps it works with a cross section but I was repeatedly in doubt.