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27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

01-03-2026 15:31

Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

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Byssonectria ?
Vasileios Kaounas, 20-11-2022 07:59
Vasileios Kaounas
Found in Robinia pseudoacacia.

Diameter 1-2 mm.

Spores (8.7) 9.5 - 11 (11.4) × (4.8) 4.9 - 5.8 (6.2) µm
Q = (1.6) 1.8 - 2.1 (2.2) ; N = 30
Me = 10.2 × 5.3 µm ; Qe = 1.9
  • message #74401
  • message #74401
Uwe Lindemann, 20-11-2022 21:55
Uwe Lindemann
Re : Byssonectria ?
Hi Bill,
I don't think that it is an operculate discomycete. The (septate) ascospores remind me more of something of the Nectriaceae. Have you test the asci in iodine? Is there perhaps an apical apparatus?
Best, Uwe
Lothar Krieglsteiner, 21-11-2022 08:31
Lothar Krieglsteiner
Re : Byssonectria ?
maybe Hydropisphaera?
Yours, Lothar