20-08-2025 19:04
Ethan CrensonHello, This asco was found on the same wood as my
21-08-2025 02:18
Stefan JakobssonOn a necrotic section of a living Tilia cordata I
19-08-2025 20:58
Ethan CrensonHi all, Here is what I believe to be a Hymenoscyp
12-08-2025 19:44
Enrique Rubio
Could someone send me a pdf copy of this article?S
18-08-2025 15:17
Lothar Krieglsteiner
... on 6.7.25 in a subarctic mire near a small lak
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
19-08-2025 16:27
Paul CannonHello all I have spent some time trying to work o
18-08-2025 22:59
Yanick BOULANGERBonsoirVoici un asco récolté le 08/08/2025Comme
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.