13-09-2025 14:01
Thomas Flammerdark brown apothecia, splitIKI-Spores biguttulate
14-09-2025 22:16
Philippe PELLICIERApothécies petites jusquà 3 mm, oranges, avec de
10-09-2025 17:18
Blasco Rafael
Hola, encontre este estiercol de vaca estos apotec
13-09-2025 14:10
Wim de GrootWe found this hymenoscyphus on rubus fruticulosis.
11-09-2025 16:57
Jason Karakehian
Our revision of Marthamycetales (Leotiomycetes) is
10-09-2025 23:53
Marcel Heyligen
Found on Robinia pseudoacasia together with Diapor
02-09-2025 11:34
Thomas Læssøehttps://svampe.databasen.org/observations/10527903
White discomycete on Alnus wood
Stefan Jakobsson,
21-01-2023 00:10
I tried to match this with e.g. Calycina hyalinula but the hairs don't fit in. The temperature in southern Finland had been mostly above freezing point for a week when this was collected yesterday. Are there better suggestions?
Lothar Krieglsteiner,
21-01-2023 09:05
Re : White discomycete on Alnus wood
perhaps have a look in the genus Hmatocanthoscypha?
Best regards, Lothar
Best regards, Lothar
Stefan Jakobsson,
21-01-2023 10:39
Re : White discomycete on Alnus wood
The hairs, of course, bring Hamatocanthoscypha to mind. But VBs in Hamatocanthoscypha? I found nothing suitable on hardwood.
Lothar Krieglsteiner,
21-01-2023 10:54
Re : White discomycete on Alnus wood
you are right, I overlooked the vacuolar bodies. Then Calycellina perhaps ?
Hans-Otto Baral,
21-01-2023 17:50
Re : White discomycete on Alnus wood
I was also thinking about the VBs but I believe Hamatocanthoscypha is a good choice. What about H. straminella? Look in my folder, it is IKI-, but I thought it should be yellow. For sulphureocintina this is so and also straminella was described as "straminea vel subaurea".
Stefan Jakobsson,
21-01-2023 18:29
Re : White discomycete on Alnus wood
At least last time I collected H. straminella on Alnus three years ago it was very clearly yellow. Then it was growing under a piece of wood against the ground in darkness, so the lack of light does not explain the difference.
Hans-Otto Baral,
21-01-2023 20:45
Re : White discomycete on Alnus wood
Ah you know it, and it was inamyloid, yes? The hairs contain here distinctly rfefractive VBs, not yellow, but I suppose the yellow VBs in the paraphyses were also refractive.
Surely this is something very similar.
Stefan Jakobsson,
21-01-2023 21:44
Re : White discomycete on Alnus wood
It was inamyloid but probably I did not test with pretreatment. Unfortunately I did not save the photos, but the notes say that hairs and paraphyses were more clearly yellow under the microscope than what the photos show.
Hans-Otto Baral,
21-01-2023 23:00
Re : White discomycete on Alnus wood
If you use Lugol you must not pretreat with KOH.
Stefan Jakobsson,
22-01-2023 00:27
Re : White discomycete on Alnus wood
Always lugol!