17-01-2026 19:35
Arnold BüschlenHallo, ich suche zu Cosmospora aurantiicola Lite
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
10-01-2026 20:00
Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
13-01-2026 07:28
Danny Newman
Chlorociboria glauca on indet. decorticate logThe
15-01-2026 15:55
Lothar Krieglsteiner
this one is especially interesting for me because
13-01-2026 08:43
Danny Newman
Tricladium varicosporioides on indet. decorticate
Sur feuille de Populus tremula
Louis DENY,
26-10-2021 18:26
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
asque-0001.jpg
spores
poils-septes-0001.jpg
poils-0002.jpg
paraphyse
texture
Hans-Otto Baral,
26-10-2021 20:53
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
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
Hans-Otto Baral,
27-10-2021 11:51
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!