30-06-2025 12:09
Edvin Johannesen
This tiny, rather "rough" erumpent asco was found
30-06-2025 16:56
Lydia KoelmansPlease can anyone tell me the species name of the
30-06-2025 14:45
Götz Palfner
This is a quite common species on Nothofagus wood
30-06-2025 06:57
Ethan CrensonHi all, Another find by a friend yesterday in Bro
25-06-2025 16:56
Philippe PELLICIERBonjour, pensez-vous que S. ceijpii soit le nom co
29-06-2025 18:11
Ethan CrensonHello all, A friend found this disco yesterday in
28-06-2025 16:00
Josep Torres
Hello.A tiny fungus shaped like globose black grai
27-06-2025 14:09
Åge OterhalsI found this pyrenomycetous fungi in mountain area
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