20-05-2026 17:47
Margot en Geert VullingsWe found this Mollisia on dead Juncus stems mown l
20-05-2026 21:49
Margot en Geert VullingsWe found this Lachnum on Juncus stems mown last ye
21-05-2026 17:01
Pierre RepellinBonjour à toutes et à tous,Je recherche l'articl
20-05-2026 20:08
Andreas Millinger
Good evening,another quite distinctive find from M
20-05-2026 12:57
Ingo Ibelshäuser
Hello everybody, on decayed hardwood e.g. Quercus
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
19-05-2026 12:55
Hardware Tony
After checking Gminder and Otto's library I cannot
Mollisia on Juncus
Margot en Geert Vullings,
20-05-2026 17:47
Average disc 0.5-0.6mm, off-white in color, lightbrown underside, no felt visible.
Texture:
Brown Textura globosa.
Asci:
Measured in water: 36.8 - 42.5 (42.6) × 4.8 - 5.6 µm
Croziers not seen, Lugol BB
Paraphyses:
Broad cylindrical, full guttule.
KOH strongly yellow.
Spores:
Measured in water: (8.2) 8.6 - 9.2 (9.3) × (2.2) 2.3 - 2.5 (2.6) µm, Qe = 3.7
Pit shaped, several little dark guttules, sometimes 2 larger light guttules, OCI 2-3.
With these data we are getting close to M. juncina, but that is KOH negative. Is to say which species could this be?
Thank you very much in advance, Geert & Margot
Hans-Otto Baral,
20-05-2026 20:21
Re : Mollisia on Juncus
I wonder if the medulla contains numerous crystals. Then it should be M. hydropjila.
Margot en Geert Vullings,
20-05-2026 21:23
Re : Mollisia on Juncus
We think we see crystals here.
Hans-Otto Baral,
20-05-2026 21:34
Re : Mollisia on Juncus
No, this is cortical ectal excipulum with VBs +/- distorted.
Margot en Geert Vullings,
21-05-2026 21:18
Re : Mollisia on Juncus
We tried again to make cross-sectional preparations, which was difficult with these small discs, and looked at this site to see what we should be seeing:
We do not think we see such crystals, and we previously did not see the brown hyphae of the subiculum in any of the preparations?
Hans-Otto Baral,
21-05-2026 21:38
Re : Mollisia on Juncus
No crystals, clearly. Then we can compare M palustris, which is a very variable species in which KOH+ and KOH- may occur.
A further option is Tapesia citrinopigmentosa, named after the yellow reaction, but I think this is ruled out, you have no subiculum and the spores look too slender.