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Zetti Mario

When I first saw this white mould on an Agaricus s

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.. 20.7.25, in subarctic habital. The liverwort i

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Dear Forum,On decorticated wood of Castanea,I foun

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White form of Proliferodiscus tricolor?
Gernot Friebes, 06-02-2018 11:49
Hi,

on the weekend I collected some fungi on the bark of a living Quercus tree. One turned out to be a white discomycete; in the field I wasn't even sure if it was an ascomycete or a cyphelloid basidiomycete. Next to this white fungus grew Proliferodiscus tricolor, which is certainly a characteristic species for this habitat. Another accompanying fungus was Orbilia vinosa. 

It took me a while to realize that the white fungus might just be a form without pigment of P. tricolor – the microscopic features turned out to be very similar/identical. The spore sizes of both collections fit well for P. tricolor.

Are there previous reports of white apothecia in Proliferodiscus? Or could it actually be a different species? Looking forward to your comments!

Best wishes,
Gernot

PS: In this post I attach photos of the typical P. tricolor collection.
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Gernot Friebes, 06-02-2018 11:51
Re : White form of Proliferodiscus tricolor?
Photos of the white apothecia.
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