25-03-2026 15:46
Michel Hairaud
Bonjour, Je sollicite de l'aide pour cette récol
25-03-2026 15:06
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me confirm
25-03-2026 13:54
Enrique Rubio
Does anyone know where I could download Paoletti's
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
24-03-2026 19:59
William Slosse
Hello everyone,On 23/03/26, I found the following
21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
24-03-2026 21:37
Elisabeth StöckliBonsoir,Sur bois (tronc) très pourri de conifère
24-03-2026 21:07
Ethan CrensonHello all, A friend collected this asco in a wood
23-03-2026 20:16
Miguel Ángel Ribes
Good eveningI'm unable to identify this Coprotus o
24-03-2026 15:44
Åge OterhalsI hope someone can confirm the name of this collec
Bonjour,C'est mon premier message sur le forum. J'ai fait cette observation le 11 avril dernier. En utilisant la clé de Korf (1951), j'arrive à Arachnopeziza trabinelloides. Je n'ai jamais observé de spores à 2 ou 3 septa comme chez A. cornuta. Qu'en pensez-vous? Merci beaucoup pour votre aide!
Cordialement
Arold
Description :
Subiculum présent; blanc
Apothécie : largeur 0,1 – 0,4 mm; orange vif; présence de poils
Asque : largeur 5,2 – 7,8 um; longueur 52,5 – 65,6 um; octosporé; pore apical devenant bleu en ajoutant de l'iode
Spore : longueur 13,1 – 15,7 um; largeur 2,9 – 5,2 um; 1 septa (parfois 0); amincie à une extrémité; hyalin
Paraphyse septées, simple ou branchue
Substrat : Bois en décompostion d'une souche de hêtre (Fagus grandifolia)
Habitat : Érablière à hêtre mature
Lieu : Grande région de Montréal, Québec, Canada.
I think you are right with your idea. Only your photos are very small (did you use oil immersion?), so difficult to interpret. I assume you reduced them?
Zotto
Which part of the specimen do you need to see? I can take some bigger pictures (but maximum on this forum is 150 ko, so yes, I reduced them...).
I have a second question. Do you know if A. trabinelloides have ever been observed in Quebec or Canada? I know it was reported in USA (West Virginia, New York, Massachussettes and Vermont).
And if you want a specimen, it will be a pleasure to send it to you.
Thanks!
Yes, Jules Cimon collected it in 2009, probably around Quebec, maybe it was in this forum (my search option does not work).
Important would be especially the spores mounted in water. The septum is usually well visible in living spores, and also the oil content is important.
I do not believe the restriction, I have no problems to upload larger images. At least when you compress them. or you could cut out elements and present in larger resolution.
Zotto
Jules Cimon collected Arachnopeziza cornuta, which have 1-3 septa.
https://www.flickr.com/photos/19369983@N06/4553287082/in/photolist-7WmMBG-6p3864-bzPevL-9G3hRE-9FZWxe-9G3hRN-ebJ7om-82E7P6-ebCXux
I look a dozen of apothecia on my specimen and it's always 1 (sometimes 0) septa.
Thanks!
Zotto