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16-03-2014 22:00

Ralph Vandiest Ralph Vandiest

Hello,I found this species a few months ago but ha

08-12-2025 13:39

Thomas Læssøe

https://svampe.databasen.org/observations/10572899

07-12-2025 22:43

Andreas Millinger Andreas Millinger

Good evening, tried to determine with Munks Valsa

07-12-2025 17:43

Malcolm  Greaves Malcolm Greaves

This Helvella was in mixed woodland. Uniform cupul

07-12-2025 16:07

Arnold Büschlen

Hallo, ich habe in einer Moos-Aufsammlung (epiohy

05-12-2025 17:33

Bruno Coué Bruno Coué

Bonjour, je serais heureux de recueillir votre avi

07-12-2025 09:24

Castillo Joseba Castillo Joseba

De la pasada semana en Galicia EspañaEn el suelo

06-12-2025 00:19

Viktorie Halasu Viktorie Halasu

Hello, would anyone have this article, please? An

04-12-2025 23:53

Malcolm  Greaves Malcolm Greaves

Is there an up to date Anthracobia key available?T

04-12-2025 21:30

Ethan Crenson

Hello all, I am looking for the following:  Bar

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Small white discomycete
Francois Guay, 15-04-2025 15:06
Francois GuayI found this small white disco on decaying deciduous wood in Québec, Canada.
 

•Asci: 40.8–45.1 × 4.1–5.4 µm, IKI+

•Some paraphyses seem to be IKI+; they turn all blue

•Spores: 5.3–7.3 × 1.9–2.7 µm


Here is the iNat link for photos: https://www.inaturalist.ca/observations/270017818

Any ideas on what it could be?
Thank you 

François
Hans-Otto Baral, 15-04-2025 16:24
Hans-Otto Baral
Re : Small white discomycete
Interesting! Such amyloid vacuoles exist, for instence in Rutstroemia alnobetulae as I remember. But in such a hyaloscyphoid species I am surprized. Perhaps the paraphyses must be alive in order to react? Is the reaction also in MLZ?
Francois Guay, 15-04-2025 19:01
Francois Guay
Re : Small white discomycete
Thank you, Zotto. Yes, the specimens were alive. I have not tried MLZ, but I will do so today and keep you updated. I will also send some specimens for sequencing.
Francois Guay, 15-04-2025 22:31
Francois Guay
Re : Small white discomycete
Hi Zotto,
I did the microscopy in MLZ and found no amyloid reaction in the paraphyses. I tried again with IKI and got some positive reaction; some paraphyses are turning blue, though not all of them.

Looking at the specimens again macroscopically, I noticed that some have a small pseudostipe with a blackish coloration. Do you have any idea what genus this could belong to?
Thanks
François
Hans-Otto Baral, 16-04-2025 07:59
Hans-Otto Baral
Re : Small white discomycete
I tend to assume a Pezizellaceae because of the VBs though only faintly refractive. Lack of hairs contradict a Ciliolarina. Macroscopically I also thought a Leptodontidium which is another family (Leptodontidiaceae).
Francois Guay, 17-04-2025 00:04
Francois Guay
Re : Small white discomycete
Very interesting, Thank you Zotto, I will update this post when I get the DNA sequence!