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Mot de passe perdu? S'inscrire

06-12-2021 09:37

Castillo Joseba Castillo Joseba

Recolectada el pasado sabado, en terrenos  de cul

05-12-2021 12:00

Castillo Joseba Castillo Joseba

Recolectada ayer. pienso que la rama era de Celtis

02-12-2021 12:45

Stephen Mifsud Stephen Mifsud

I was revising some past identifications and I wis

02-12-2021 18:30

Khomenko Igor Khomenko Igor

Hi, this fall around Ottawa, ON, Canada I found a

05-12-2021 17:32

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte attenante de Corylus a

28-07-2021 15:26

Jennifer Fiorentino

Would be very happy to receive your opinion on thi

05-12-2021 12:05

Joop van der Lee Joop van der Lee

Foound on horse dung.Ascomata: cup shaped; 333 um

03-12-2021 15:29

Chris Yeates Chris Yeates

Bonjour tous An Ascobolus sp. has appeared in som

03-12-2021 16:37

maurice pelissier maurice pelissier

Bonjour trouvé dans les Hautes Pyrénées sur un

23-09-2021 13:40

Björn Nordén

Hi all,Does anyone by any chance have The taxonom

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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
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  • 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.

Louis DENY, 27-10-2021 11:20
Re : Sur feuille de Populus tremula
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

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  • 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!