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27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

28-02-2026 15:52

Spooren Marco Spooren Marco

Who has an idea ? I have no coupes made for conid

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

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

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

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

28-02-2026 11:05

Yanick BOULANGER

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

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

27-02-2026 12:56

Åge Oterhals

Found on fallen cones of Pinus sylvestris in midle

27-02-2026 11:21

Yannick Mourgues Yannick Mourgues

Hi to all. Here is a specie that can may be relat

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

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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