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09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

08-06-2026 17:00

François Bartholomeeusen

Good day everyone, On June 5 2026, I collected de

07-06-2026 18:18

Mario Schulz

Hello everyone, i found on 31.5 the following Mol

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

07-06-2026 12:09

François Freléchoux François Freléchoux

Bonjour, Voici une brève description de ce qui m

07-06-2026 12:43

Steve Clements

Bojour. This was a strange find on a stick on my

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

06-06-2026 17:44

Steve Clements

Bonjour, This disco was on planed wood 3 x 1.5 cm

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Mollisia on Juncus
Margot en Geert Vullings, 20-05-2026 17:47
We found this Mollisia on dead Juncus stems mown last year.
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
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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.
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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?
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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.
Margot en Geert Vullings, 22-05-2026 14:48
Re : Mollisia on Juncus
Thank you for your help, we have learned from it again. We are keeping this one as M. palustris.

Kind regards, Geert&Margot