17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
17-05-2026 16:41
Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
15-05-2026 13:33
Sylvie Le GoffBonjour à tousJe serais très reconnaissante enve
16-03-2011 14:31
roman vargas albertoHi. I would like some opinion about this Peziza
14-05-2026 05:36
Ethan CrensonHi all, I haven't paid much attention to Lachnu
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
11-05-2026 12:32
Bernard CLESSE
Pourriez-vous m'aider à identifier cette héloti
13-05-2026 15:26
François Freléchoux
Bonjour,Voici une récolte faite il y a quelques j
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