09-05-2020 14:04
Bernard Declercq
Hi,Collected on female catkins of Populus canescen
08-05-2020 12:32
Edvin Johannesen
I have a Hysterium on resin from bark of Picea abi
05-05-2020 15:45
Bernard CLESSE
Bonjour à toutes et tous,J'ai trouvé il y a 3 jo
05-05-2020 16:12
Hardware Tony
Hi, First time here, and in English so hope can tr
05-05-2020 15:36
Valencia Lopez Francisco JavierHola a tod@sAdjunto fotos macro/micro de unos asco
02-05-2020 23:48
Rubén Martínez-Gil
Hola a todos Subo unas fotos de unas recolectas d
03-05-2020 20:49
Andrés Valverde Valera
Bonsoir,Je vous envoie quelques photos d'un Diatry
04-05-2020 22:00
Charles Aron
Hi All, I have found a mollisioid fungus on very
Taphrina on Populus canescens catkins
Bernard Declercq,
09-05-2020 14:04
Hi,Collected on female catkins of Populus canescens:
Swollen carpels bright yellow to slightly brownish. Asci cylindrical,with strongly tapering, flexuous base, 110-166x22-32 µm, without basal cell, some with bright yellow lipid bodies. Ascospores ovoid to oval, e.g. 8x4.5 µm, budding within the ascus.
According Petrydesova et al. (2013: 3091), the ascus length and width exclude Taphrina johansonii so that this collection is probably a T. rhizophora. But T. rhizophora is described as being exclusively collected on Populus alba.
Can anyone help me here? Thanks in advance.
Bernard Declercq
Alain GARDIENNET,
09-05-2020 15:25
Re : Taphrina on Populus canescens catkins
Salut Bernard,
Juste un rappel : canescens = alba x tremula
Alain
Nicolas Schwab,
09-05-2020 15:42
Re : Taphrina on Populus canescens catkins
As Alain said Populus canescens is an hybrid of Populus alba. It doesn't seem to me that it is impossible to find Taphrina rhizophora on it. The most important criteria is the ascus length and it corresponds well with this species.