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22-05-2026 21:35

Steve Clements

Bonjour, I expected this find on old wood on our

22-05-2026 18:12

Lothar Krieglsteiner Lothar Krieglsteiner

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

22-05-2026 20:08

Ethan Crenson

Hello all,  Yesterday in NYC I was visiting an e

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

20-05-2026 17:47

Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 14:44

Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Gernot Friebes

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

22-05-2026 10:59

Nicolas VAN VOOREN Nicolas VAN VOOREN

Trouvé sur Phragmites, ce que je pense être un L

20-05-2026 21:49

Margot en Geert Vullings

We found this Lachnum on Juncus stems mown last ye

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Sur feuille de Populus tremula
Louis DENY, 26-10-2021 18:26
Bonsoir forum


Sur feuille d'arbre (sans doute populus tremula) ce petit (diamètre 1 mm) disque blanc à poils courts
Poils lisses, séptés, extrémités arrondies, moins de 50µ
Asques à crochet (?), spores bisériées. Pas de réaction notable au Lugol, 50µ
Spores sans guttules, 7-10 X 3µ
Texture prismatique

Merci de votre aide
  • message #70455
  • message #70455
  • message #70455
  • message #70455
Hans-Otto Baral, 26-10-2021 20:53
Hans-Otto Baral
Re : Sur feuille de Populus tremula
Cher Luis

hmm, I am not prepared to say what this could be. I assume the apos look fringed with hairs and are sessile. Or is there a stalk?

The living paraphyses would be helpful, although I assume they contain cylindrical VBs as I can discern in the hairs.

Psilocistella could be a wastebasket genus, but I don't remember a species.

Zotto
Louis DENY, 27-10-2021 11:20
Re : Sur feuille de Populus tremula
Zotto,
thanks for the hint. 
Appos are stalked (i mesured around 0.2mm)
Paraphyses are very rare. I Attached is a photo.Hope it can help

Louis
  • message #70464
  • message #70464
Hans-Otto Baral, 27-10-2021 11:51
Hans-Otto Baral
Re : Sur feuille de Populus tremula
This is good! Now I have an idea: Calycina subcitrina, to be found in "Calycina white, sp. aseptate".
Louis DENY, 27-10-2021 12:03
Re : Sur feuille de Populus tremula
Thanks à lot!