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12-05-2020 21:36

Pyrenopeziza betulina?
Juuso Äikäs

I visited a small, swampy forest today and found s

12-05-2020 18:19

Amniculicola parva?
Sven Heinz Sven Heinz

Hello everyone, can someone help me with the mushr

12-05-2020 19:56

literature request
Angel Pintos Angel Pintos

Hello anybody has this description?Dothiorella rha

11-05-2020 14:56

Lasiobolus on dung
Juuso Äikäs

I found some Lasiobolus growing on dung of some an

11-05-2020 14:45

Hyaloscypha (?) on Picea resin
Edvin Johannesen Edvin Johannesen

Very small (up to 0,2 mm diam.) whitish apothecia

11-05-2020 19:30

Hyaloscyphaceae on Betula
Juuso Äikäs

I photographed these a couple weeks ago or so. The

11-05-2020 20:13

Camarosporium sl
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte de Colutea arborescens

11-05-2020 20:03

Leptosphaeria sur Carex
Matthias Reul Matthias Reul

Bonjour à tous,voici une espèce de Leptosphaeria

10-05-2020 14:58

Valsa sp. sur Sorbus
Andgelo Mombert Andgelo Mombert

Bonjour à tous, Sur branche morte de Sorbus torm

04-02-2015 01:29

Hypoxylon ticinense in Italy
Mario Filippa

In October I found what seemed a corticioid fungus

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Pyrenopeziza betulina?
Juuso Äikäs, 12-05-2020 21:36
I visited a small, swampy forest today and found something growing on a fallen leaf of Betula. In the field while looking at them with a hand lens I thought they were Orbilias of some sort. But soon I suspected that they are Pyrenopezizas. I think the microscopy agrees with this, although this is the first example of that genus that I've inspected. 

The spores measure 11-15.3 × 3-3.3 µm. Given the microscopy and the substrate I suspect this might be P. betulina (same as P. betulicola, I believe). Am I right?
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Hans-Otto Baral, 12-05-2020 21:57
Hans-Otto Baral
Re : Pyrenopeziza betulina?
Yes, I think there is no doubt.

Zotto