21-11-2025 11:52
Jean-Luc RangerBonjour à tous, on voit toujours 2 espèces areni
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
20-11-2025 14:14
Mick PeerdemanFound on the leaves of 'Juglans regia' in the Neth
20-11-2025 13:07
Mick PeerdemanIn January i found these black markings on the dea
Black asco on Rhododendron
Malcolm Greaves,
16-04-2019 15:10
HelloCan someone help with this found on a dead/dying Rhododendron bud.
They were clustered on the surface (1.5mm across) and although I could find no asci the spores were 3 septate and 27 x 3.5. the whole apothecia was blued by meltzers.
Thanks
Mal
Jason Karakehian,
16-04-2019 22:01
Re : Black asco on Rhododendron
Strossmayeria?
Nick Aplin,
18-04-2019 00:23
Re : Black asco on Rhododendron
Hi Mal,
Perhaps, considering the blue tones and the fusarium-like spore, you have a Gibberella species?
Cheers,
Nick
Perhaps, considering the blue tones and the fusarium-like spore, you have a Gibberella species?
Cheers,
Nick
Malcolm Greaves,
18-04-2019 11:28
Re : Black asco on Rhododendron
Thanks for the replies. Searching for information on the suggested species (Strossmayeria and Gibberella) the latter looks most likely but as the key seems to need the anomorph information I think it will stay as Gibberella sp (possibly G zeae).
Mal