30-11-2010 00:30
Luc Bailly
Bonsoir à tous, Y a-t-il des Bisporella décri
29-11-2010 00:14
Martin Bemmann
Hi all, I know, Nectriaceae are very difficult (a
28-11-2010 17:49
Albert Grobelnyil y a quatre jours, à même le sol , dans l'her
27-11-2010 21:35
Javier OrmadBonjour à tous Je vous présente une espèce qui
27-11-2010 15:14
maurice pelissier
bonjour j'ai découvert ce cordyceps à Mayotte ce
27-11-2010 12:51
VASILEIOS KAOUNASFound 27-11-10, in forest with Pinus halepensis. A
27-11-2010 12:24
Piet BORMANS
Bonjour. Une collègue m'a transmise cette quest
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.