23-06-2025 13:25
Enrique Rubio
I would like to hear your opinion on this Scutelli
23-06-2025 04:03
Francois Guay
Hi, I found this tiny sulfur yellow asco growing o
22-06-2025 13:52
DirkW
Dear friends,anyone out there with this paper?:DOU
26-05-2025 18:09
Henk RemijnGood day,In a burned forest near Hulst on the bord
20-06-2025 08:33
Josep Torres
Hello.Small, blackish, mucronated surface grains s
19-06-2025 22:19
Björn NordénBig thanks in advance.
11-06-2025 16:26
Jason Karakehian
Hi everyone, I am looking for the following protol
18-06-2025 19:24
Bernard Declercq
Good evening,On Oenanthe aquatica we collected a
Coussin blanc, tanslucide, diametre max 1,5mm
Asques jusqu'à 170X15 µ, avec crochet, J+, 4 spores
Spores extrèmement variables de dimensions et formes (longueur de 20 à 50µ !), parfais à extrémité arrondie, parfois pointue
Paraphyses filiformes, avac vacuoles
L'aspect macro ressemble à Discinella shimperi, qui vient aussi sur sphagnum,mais la micro ne correspond pas,
Votre aide sera la bienvenue
Belle trouvaille, mais j'ai l'impression qu 'il y a un problème de maturité des spores.
Hymenoscyphus vasaensis est sur la même niche. Elle a des spores ressemblant à la forme de celles de ta récolte , du moins pour certaines. Et l'espèce (mais je ne l'ai vue que très peu souvent) à des asques à 8 spores
Amitiés Michel
Je n'ai pas de documentation sur cet hymenoscyphus. Tu peux me dire où en trouver?
Amitiés
This is a nice find. The presence of dense guttules / VB-like structures in the paraphyses here indicates it is not very close to D. schimperi / Helotium vasaense, which are probably sister taxa. However, I have only examined one (fresh) collection each of these so my experience is limited, but I observed paraphyses lacking this type of guttulation.
Perhaps Bryoscyphus s.l. is closer. 4-spored asci are unusual but there are some collections of undescribed species in Zotto's folder that are 4-spored: "B. tetrasporus" nom. prov.
The Helotiales on bryophytes are a difficult group morphologically. Do you think it will be possible to sequence this collection? Were there many apothecia?
All the best,
George
Effectively Zotto's folder 'Brioscyphus tetrasporus' seems to fit quite well with my finding.
I have kept few apothecia in the fridge. They are available for a sequence if you wish. As long as you tell me where and how to send them.
Louis