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22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

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Hymenoscyphus sp.
Mirek Gryc, 14-10-2020 07:52
Hi
Last Sunday I found this Hymeoscyphus growing on leaves lying on the muddy ground. multi-species forest, including Populus. Due to time constraints, I only took a few photos. The spores didn't want to release from the ascus so I put the collection in the ripening room. Unfortunately, I moistened too little and the ascomata gently dried up. Further breeding attempts did not give adequate results. However, looking at the photos taken just after the harvest, I came to the conclusion that it may be quite an interesting species. Similar to H. imberbias but certainly not.
The content of paraffins is very weakly refracting light and tends to blend together. Ascus much longer than that of H. Imberbis. A few measured slightly exceeded 100 µm.
The only similar one that I could find in the literature is Phaeohelotium binucleatum. The problem is, I didn't capture the nucleic droplets in the photos. Some spores show something similar to them, but I'm not sure if it's them?

Anyway, I am posting photos hoping for your opinion.

Spores:

(9.5) 10.2 - 11.2 (12.2) × (3.7) 3.8 - 4.1 (4.3) µm
Q = (2.4) 2.7 - 2.8 ; N = 6
Me = 10.9 × 4 µm ; Qe = 2.7

  9.53 4.03
10.78 3.79
12.23 4.32
10.25 3.70
11.25 3.99
11.08 4.14

greetings
Mirek
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Lothar Krieglsteiner, 14-10-2020 08:15
Lothar Krieglsteiner
Re : Hymenoscyphus sp.
Hello Mirek,
without fully comparing the measurements (no time), I see some similiarities with Hymenoscyphus immutabilis.
Best, Lothar
Mirek Gryc, 14-10-2020 08:36
Re : Hymenoscyphus sp.
Hi Lothar
I didn't know this genre but it seems it will be this genre.
Many thanks
Mirek
Hans-Otto Baral, 14-10-2020 10:20
Hans-Otto Baral
Re : Hymenoscyphus sp.
I agree. The apos are probably over 1 mm? H. immutabilis is comparatively large. The paraphysis content is perfect, not at all as refractive as in imberbis. But with IKI it causes a strong red reaction with extruding minute granules.
Mirek Gryc, 14-10-2020 10:26
Re : Hymenoscyphus sp.
Hi Zotto
The Ascomats were quite small, about 1mm, probably because, as I said, the fruiting bodies were not yet mature enough.
The contents of the paraphyses, exactly as you say :)
Thank you
Mirek