Discomycete on Castanea - Forum ASCOFrance

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Discomycete on Castanea

Gernot Friebes, 30-01-2018 14:52

Hi,

this one was also found by A. Gallé on wood of Castanea. The brownish excipular cells are very striking. The ascospores measure about 11.8–13.4 x 3–3,6 µm. The paraphyses contain VBs. Photos are by myself and A. Gallé. Thanks for your help!

Best wishes,
Gernot

Lothar Krieglsteiner, 30-01-2018 16:12

Re : Discomycete on Castanea

Hello Gernot,

I do not know the species, but especially the spores strongly remind me of Encoelia.

Best regards, Lothar

Hans-Otto Baral, 30-01-2018 16:30

Re : Discomycete on Castanea

Hi Gernot
yes, somewhat encoelioid. Do you have a pic of the VBs?
Zotto

Gernot Friebes, 30-01-2018 16:51

Re : Discomycete on Castanea

Hi, Lothar & Zotto,

thanks! I had not considered an encoelioid fungus. The VBs can be seen on the ninth picture – I attach a cropped and enhanced version of it.

Best wishes,
Gernot

Viktorie Halasu, 31-01-2018 01:15

Re : Discomycete on Castanea

Hello Gernot,

this reminds me on the collections by S. Tello and myself, so far unnamed
http://ascofrance.fr/search_forum/47451
http://www.ascofrance.fr/search_forum/21391

Best,
Viktorie

Hans-Otto Baral, 31-01-2018 08:14

Re : Discomycete on Castanea

Indeed Viktorie, it looks just like those. I cannot remember these two earlier samples, but found them via the host genus in my files under Cenangiaceae, folder "indet. Prunus, Hedera"

Gernot Friebes, 31-01-2018 11:51

Re : Discomycete on Castanea

Thank you! These collections do look similar, although I'm not sure if the ascospore form is exactly the same; they tend to be bent in our material which I don't see in your collections. But who knows how much that can vary!

Best wishes,
Gernot

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