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23-05-2026 11:44

Coprophilous pyrenomycete wild boar dung
Charles Grapinet Charles Grapinet

Hello, I am having trouble identifying this copro

25-05-2026 16:44

Ascomata under epidermis Carex
François Bartholomeeusen

Hi forum members,During an excursion organised by

25-05-2026 16:35

Anamorphe d'Hypomyces aurantius ? sous saule cendré (Salix cinerea)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

22-05-2026 13:29

Pseudophacidium ?necans on Vaccinium myrtillus
Gernot Friebes

Hi,I am curious to hear your opinion on this mater

23-05-2026 18:57

Mollisia scopiformis
Sylvie Le Goff

Bonjour à tousRécolté sur une branchette de Sal

23-05-2026 23:53

cf Godronia sp.
Moreno Miriam

Bonjour ! Je travaille sur mon mémoire de master

22-05-2026 14:44

minute Saccobolus from cow-dung (moist chamber from Portugal)
Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 21:35

A yellow synnemata (coremia) on wood
Steve Clements

Bonjour, I expected this find on old wood on our

22-05-2026 18:12

similar to Karstenia but iodine-negative - on Osmunda in moist chamber
Lothar Krieglsteiner Lothar Krieglsteiner

... in moist chamber from Portugal.As the fungus s

22-05-2026 20:08

tiny gray asco on Pinus strobus / moss
Ethan Crenson

Hello all,  Yesterday in NYC I was visiting an e

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Hymenoscyphus on Populus leaves
Juuso Äikäs, 15-10-2020 13:31
These were growing on fallen leaves of Populus tremula. 

Many spores had one to three tiny setulae.

Spore measurements:
(17.2) 17.22 - 18.7 (19.5) × (4.5) 4.53 - 4.9 (5.1) µm
Q = (3.4) 3.5 - 4.1 (4.3) ; N = 10
Me = 17.8 × 4.8 µm ; Qe = 3.7

This is clearly a Hymenoscyphus or something like that, but further I can't tell.
  • message #65398
  • message #65398
Lothar Krieglsteiner, 15-10-2020 15:49
Lothar Krieglsteiner
Re : Hymenoscyphus on Populus leaves
for me this looks like H. caudatus.
Best regards, Lothar
Juuso Äikäs, 15-10-2020 17:42
Re : Hymenoscyphus on Populus leaves
I searched some info and yes, that species (complex?) seems to fit! Thanks!
Hans-Otto Baral, 15-10-2020 17:48
Hans-Otto Baral
Re : Hymenoscyphus on Populus leaves
Not exactly, because of the croziers. The common H. caudatus is without, but this one is my folder "caudatus H+ central Europe Querc Popul leaves" and the nice name "Sophienpflege" is attached to most filenames. There is also the name albopunctus, but that species has smaller spores and lacks croziers.

Would be great to add a note on the collection site to your pics, including date.

Zotto
Juuso Äikäs, 15-10-2020 18:31
Re : Hymenoscyphus on Populus leaves
I was actually earlier looking at that folder. I replaced the pics with ones that have the location and date added to them.
Hans-Otto Baral, 15-10-2020 20:22
Hans-Otto Baral
Re : Hymenoscyphus on Populus leaves
Thanks!