17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
15-04-2026 19:33
Fátima Durán ManzanequeHi!! I need help, I found this Ascomycete but I d
14-04-2026 20:31
Gernot FriebesHi,can this be Psilachnum lateritioalbum on Phragm
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
12-04-2026 12:22
William Slosse
In a dune grassland in Oostduinkerke (Belgium), on
Hello,
another one which puzzles me.
Macroscopically I thought of an Olla species, because the apothecia were very small and more or less urceolate. But under the dissecting microscope it showed that the hairs were protruding from the excipulum, a little bit similar to Urceolella crispa.
But microscopically it was evident that the hairs are quite inconspicous. Mostly three celled, hyalin, somewhat laceolate (see foto)
Asci with croziers, IKI bb 3
Spores cylindrical, approx. 9-11 x 3-3,2 µm, without oil content.
Interestingly the excipulum contained many granules which stained amyloid in Barals solution!
Found at the cut surface of a lying Fagus stem.
thank you and best regards,
Andreas
This blue-blackish reaction in IKI is often seen in Hyaloscypha. An option for your fungus is H. albohyalina. How are the paraphyses?
Best regards,
Raúl
Dear Raúl,
thank you for your opinion.
I don't think that it is a Hyaloscypha species, because the hairs don't fit this genus at all, and the spores are completely without oil content. Also all these excipulum cells with a big round bubble inside I have never seen in Hyaloscypha.
best regards,
Andreas
The iodine reaction I don't know.
The species was recently redescribed based partly on my species concept:
Quijada et al. 2014 Psilocistella quercina AscomyceteOrg 06-05 143-146
Zotto
Dear Zotto,
thank you very much, I will look in this direction.
I don't have a macro picture because it was too small and when I came home with it it was already dreid out after a few minutes. I should have taken a foto first ....
best regards,
Andreas