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15-04-2019 00:02

Salvador Tello

Estas Cheilymenia crecían en Sierra nevada (EspaÃ

14-04-2019 21:56

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11-04-2019 19:54

Ueli Graf Ueli Graf

Hallo, hab da noch einer auf Reh Dung gefunden. Ic

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12-04-2019 16:20

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Thomas Læssøe

I may have asked before but then this is a retry.

11-04-2019 06:24

Ethan Crenson

Found last Sunday in New York City on unknown hard

11-04-2019 06:53

Ethan Crenson

From New York City last weekend, growing on an old

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Mollisia fusca on a polypore?
François Bartholomeeusen, 11-04-2019 09:08
Dear forum members,

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

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Hans-Otto Baral, 11-04-2019 10:31
Hans-Otto Baral
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
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Hans-Otto Baral, 11-04-2019 16:30
Hans-Otto Baral
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).
François Bartholomeeusen, 11-04-2019 17:00
Re : Mollisia fusca on a polypore?
Thanks Zotto for your swift answer!
Greetings,

François