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07-12-2025 16:07

Arnold Büschlen

Hallo, ich habe in einer Moos-Aufsammlung (epiphy

08-12-2025 21:04

Mark Stevens

"Hello everyone,I'm relatively new to microscopy (

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

08-12-2025 18:59

Lothar Krieglsteiner Lothar Krieglsteiner

.. found by a seminar-participant, I do not know t

08-12-2025 21:18

Buckwheat Pete

Hello everyone, Is it possible to at least approx

07-12-2025 17:43

Malcolm  Greaves Malcolm Greaves

This Helvella was in mixed woodland. Uniform cupul

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

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

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ID Help Hymenoscyphus
Nogueira Héctor, 18-11-2025 13:59
November 14, 2025 Brazuelo (León) SPAIN
Hymenoscyphus vitigenus?

Hello!

Specimens growing on indeterminate leaves in a mixed forest of Quercus robur, Alnus sp., Populus sp., and other riparian vegetation.

Positive reaction of the asci apex in Lugol's iodine.

I haven't obtained any free spore print, but I believe I observed mature spores, crusted in the center, with a septum.

(15.2) 16.3 - 20.3 (21.5) × (4.3) 4.8 - 5.7 (6.2) µm

Q = (2.9) 3 - 4 (4.5) ; N = 19

Me = 18.5 × 5.2 µm ; Qe = 3.6
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Hans-Otto Baral, 18-11-2025 15:16
Hans-Otto Baral
Re : ID Help Hymenoscyphus
My guess is H. caudatus. The spores are only faintly scutuloid which is possible in this variable species. H. vitigenus is unclarified, it is heterogeneous in the type of the perhaps identical H. hyalopes (see my paper on H. menthae (2015, Ascomycete.org, 7 (6) : 255-287).
Nogueira Héctor, 18-11-2025 16:33
Re : ID Help Hymenoscyphus
At first I thought it was H. caudatus, but I followed a key that led me to H. vitigenus, and now I have my doubts. Thank you very much for your help.