03-06-2026 19:45
Miguel Ángel Ribes
Good afternoonI'm completely baffled by this suppo
03-06-2026 14:39
Thomas FlammerApothecia yellow, glassy-transparent, 80 - 120 ymS
16-03-2014 13:39
Enrique Rubio
HI to all I'm looking for B. Hein's article on Wi
02-06-2026 14:33
Nicolas VAN VOOREN
Hello.I'm searching for a PDF copy of the followin
18-10-2022 00:12
Valencia Lopez Francisco JavierHola amigos/asRecientemente encontré esta colecci
02-06-2026 17:58
Louis DENYBonjour forum, Sur feuille de Populus tremula, en
Orange disks
Leif Goodwin,
14-10-2023 11:29
Someone suggested a Purpureodiscus species e.g. P. isabellinus.
Help appreciated.
Nicolas VAN VOOREN,
22-10-2023 11:19
Re : Orange disks
Macroscopically it looks like Purpureodiscus subisabellinus, but you should show some mature ascospores (in water). They measure 18.5-23.5 × 11-13 µm and show bipolar spore granules. The amyloid reaction of asci is only visible on the wall (W type), sometimes difficult to see.
Leif Goodwin,
13-11-2023 18:43
Re : Orange disks
Thank you for taking the time to reply, and apologies for my late response. I have given the specimen to someone who will amplify the ITS region of the DNA and then have it sequenced. When he returns it, I will try and find some mature spores. Hopefully the DNA sequencing will give us an answer, but sadly DNA does not always amplify, possibly because the primers are not ideal for ascos.