19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
17-02-2026 17:26
Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
15-02-2026 04:32
Tomaz Vucko
One more specimen that is giving me some descent a
17-02-2026 13:41
Isabelle CharissouBonjour, est-ce que quelqu'un pourrait me fournir
Proliferodiscus pulveraceus ?
Ethan Crenson,
10-01-2022 17:06
Hello all,
I think I have finally found Proliferodiscus pulveraceus here in Brooklyn. The tissue turns violet in KOH. The hairs are cylindrical and encrusted. Unfortunately, my collection seems to be immature. All asci that I have seen do not contain spores. And in IKI I do not see an amyloid reaction. (Is it possible that the amyloidity could develop after the asci mature?) Is this Proliferodiscus as i suspect or should I look elsewhere (after nurturing it in a moist chamber perhaps)?
Thank you all for your help.
Ethan
Hans-Otto Baral,
10-01-2022 17:34
Re : Proliferodiscus pulveraceus ?
Yes, it is Proliferodiscus pulveraceus. This species is often immature or has only a few mature asci. The iodine reaction must be present before the spores get mature.
But there actually exist populations with inamyloid asci. E.g. in HB 6691b I did not get a reaction even after KOH-pretreatment.
Interesting would be to look for the ascus base, there exist populations with or without croziers.
Ethan Crenson,
10-01-2022 17:38
Re : Proliferodiscus pulveraceus ?
Thank you, Zotto. I will look at it again after a few days in a moist chamber with and pay particular attention to the presence of croziers.