17-11-2022 21:18
Stephen Martin Mifsud
I am examining a presumed fungus that produce a si
20-11-2022 19:55
Mirek GrycHi Found a few days ago. I have never studied suc
20-11-2022 19:42
Mirek GrycHiFound a month ago on pine bark. The fruiting bod
14-11-2022 22:49
Oliver CzerniaGreetings!My name is Oliver and I am a recent fung
19-11-2022 22:33
Richard VALERI
Bonsoir tout le monde.Monts du Forez (63) - Altitu
06-08-2011 12:09
Marja PennanenHello,these black spots are up to something like 0
18-11-2022 10:57
Lothar Krieglsteiner
this collection I could determine as Hysterium pul
What fungus produces a silvery sheen and black droplets ?
Stephen Martin Mifsud,
17-11-2022 21:18
I am examining a presumed fungus that produce a silvery sheen under the epidermis and exudates some sort of tiny black droplet on the leaf surface. I have dissected small leaf segments (0.5-1.0 mm) and dropped them on some media perhaps I can cultivate the fungus. This was found on Ferula melitensis which is quite resistant to fungal phytopathens. I dont think it is a soot fungus , but I am all ears to suggestions!
Björn Sothmann,
17-11-2022 21:39
Re : What fungus produces a silvery sheen and black droplets ?
Hii Stephen,
it's not easy to judge based on these macroscopic pictures, but it would be some powdery mildews where you can see the white anamorph and the dark chasmothecia.
Björn
Stephen Martin Mifsud,
20-11-2022 20:23
Re : What fungus produces a silvery sheen and black droplets ?
Thank you Björn. I have dropped some small pieces on Sabourad and PDa and see what I get and report back. I was confused with the 'black droplets'
Stephen Martin Mifsud,
22-11-2022 20:39
Re : What fungus produces a silvery sheen and black droplets ?
Well we have something workable (arrows) . I guess the mildew in question is the white fluffy colony. I will subculture from this mycelium and in the meantime check if there are some conidiophores/condia to lead to some identification. I am interested coz I seldom see this common endemic plant infected. Underlying is a dull green presence (Penicillium-ish)
