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Michel Hairaud
Bonjour, Voici une Helotiale manifestement liée
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Ethan CrensonHello, Yesterday in New York City on Pinus strobu
Mollisia fusca on a polypore?
François Bartholomeeusen,
11-04-2019 09:08
FRBs found on the hymenium of a polypore (Piptoporus betulum). The substrate was still attached to the birch. The diameter of the ascomata are smaller than 1 mm.
Using my information I determine this asco as Mollisia fusca.
Is that correct? The dimensions of the spores are not completely correct and the substrate must be wood according to the key.
Thank you in advance for your help.
Best regards
François
Hans-Otto Baral,
11-04-2019 10:31
Re : Mollisia fusca on a polypore?
M. fusca as I understand has longer spores. Did you test KOH whether a yellow sap extrudes?
François Bartholomeeusen,
11-04-2019 14:16
Re : Mollisia fusca on a polypore?
Hi Zotto,
I forgot to mention, the reaction in 5% KOH was immediate lemon-yellow.
François
I forgot to mention, the reaction in 5% KOH was immediate lemon-yellow.
François
Hans-Otto Baral,
11-04-2019 16:30
Re : Mollisia fusca on a polypore?
M. fusca seems actually a big problem because the available sequences are very diverse.
In seemingly typical collections the spores are often 10-14 µm long. And the subicular hyphae were rather wide (3-5 µm).
In seemingly typical collections the spores are often 10-14 µm long. And the subicular hyphae were rather wide (3-5 µm).
François Bartholomeeusen,
11-04-2019 17:00
Re : Mollisia fusca on a polypore?
Thanks Zotto for your swift answer!
Greetings,
François
Greetings,
François