09-04-2026 15:25
Jac GelderblomOn bare soil between mosses Ifound an asco I deter
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Thomas Læssøehttps://svampe.databasen.org/observations/10589176
09-04-2026 10:12
Thomas Læssøehttps://svampe.databasen.org/observations/10587061
08-04-2026 20:33
Vasileios Kaounas
Found 07-04-26, in Abies cephalonica. Diameter 1,
08-04-2026 10:39
FRANCIS FOUCHIERBonjour , je recherche en pdf cet article: KORF R
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Viktorie Halasu
Hello, could anyone please send me the article wi
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David Gibbs
Help with this one much appreciated, on rotting Fa
Sydowiella or Melanconis teleomorph on Betula
Mathias Hass,
27-02-2026 16:17
Hi,
Found this on Betula, rather fresh fallen twig. found February 24, Asserbo, Denmark
Groups of black ostioles protruding through a whitish disc.
Asci: 102-124 x 13,6 - 18,7 my, with prominent apical pore, IKI-.
Ascospores: 20,2 (16,8-25,0) x 8,9(7,8-11,5) my, Q=2,23 (2,05-2,69), n=20. 1-septate, hyaline with oily content.
Anamorph not seen.
I can't figure out whether this is Melanconis stilbostoma or Sydowiella ambigua ...also I'm uncertain what the difference is between them.
... any help appreciated.
Kind regards Mathias
Mathias Hass,
02-03-2026 08:11
Re : Sydowiella or Melanconis teleomorph on Betula
I just realized that it cannot be Sydowiella ambigua, because the peritecia are stromatic and immersed in the substrate, so it must be the common Melanconis stilbostoma. Here is the description of S. ambigua by Munk from "Danish pyrenomycetes" 1957.
