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Danny Newman Danny Newman

Hello AscoFrance, I have recently photographed, c

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Warre Van Caenegem

I'm currently in Croatia doing fieldwork that is n

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Francois Guay Francois Guay

Hi, I found this tiny sulfur yellow asco growing o

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Enrique Rubio Enrique Rubio

I would like to hear your opinion on this Scutelli

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DirkW DirkW

Dear friends,anyone out there with this paper?:DOU

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Henk Remijn

Good day,In a burned forest near Hulst on the bord

21-06-2025 22:27

David Chapados David Chapados

Hi,Is this a Calycina? C. herbarum?Growing on an h

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Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

11-06-2025 16:26

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

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Sydowiella ambigua
Björn Wergen, 12-03-2012 20:11
Björn WergenHi all,

today I have found a small Diaporthales on attached, but dead Betula branches with brown conidia spores and ascospores about 20-27x8-9µm. My problem is, that there is no conidia state described in Ellis&Ellis, for S. ambigua. But for Melanconis stilbostoma, which has smaller spores (Ellis&Ellis, Arx&Müller). 

My question: Do you know something about a conidia state from S. ambigua? The key in Arx&Müller directs to the genus Melanconis, which is also a synonym genus for S. ambigua.

I think it IS Sydowiella ambigua. But perhaps you have another idea ;)

regards,
björn
  • message #17772
  • message #17772
  • message #17772
Björn Wergen, 13-03-2012 09:58
Björn Wergen
Re : Sydowiella ambigua
Ok, thank you Yan :)