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28-07-2022 11:34

Filip Fuljer Filip Fuljer

Hello guys,I recently collected some strange possi

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Ronald Morsink

Hello everyone,I found these small ascomycetes in

15-09-2021 12:41

Mirek Gryc

Hello allDear forum members, are my suspicions cor

24-07-2022 14:01

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, yesterday I collected this Mollisia.Ascospo

18-11-2012 21:36

Byrain

I found this mold growing on a old and dried out A

23-07-2022 14:52

Elisabeth Stöckli

Bonjour, Sur une branche aérienne de Picea abies

17-07-2022 05:33

Gao Hanxing

Hello,I am looking for following paper: (1)Bayer

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Stephen Martin Mifsud Stephen Martin Mifsud

Hello, I recently found a mould growing on a wine

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Zuidland Peter

Hello all,Found today in a eucalyptus bushland in

20-07-2022 18:57

Richard VALERI Richard VALERI

Bonsoir à tous et merci à Michel de m'avoir acce

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Rutstroemia?
Yatsiuk Iryna, 18-10-2010 15:34
Yatsiuk IrynaHello, everybody!
This fungus was collected on plant debris in oakwood.
Some microscopic dimensions:
Sporesize - 13-17 * 3,8-5,3 um
Asci: 100-120*8-9 um
Small spores (presumably conidia?) are presented - 3,6*1 um
Apical pore blue in IKI
Pleace, help to determinate. I'm only beginner in studying discomycetes, so be grateful for any adviсe!
Thank you,
Irina
  • message #13032
Hans-Otto Baral, 18-10-2010 16:37
Hans-Otto Baral
Re:Rutstroemia?
dear Irina

yeas that looks like Rutstroemia firma. Your spores looke septate but mature spores are still aseptate, and wehn alive contain big drops.

The conidia formed on the overmature spores are subglobose and contain one drop. Do you have the fungus still fresh? Did you try mounting in tap water?

Zotto
Yatsiuk Iryna, 19-10-2010 13:39
Yatsiuk Iryna
Re:Rutstroemia?
Dear Zotto,

Thank you very much. This specimen was mounted in water. Unfortunately, I don't have fresh one.

Irina
Marja Pennanen, 20-10-2010 22:03
Re:Rutstroemia?
Hello Irina and Zotto.

I just happened to study a specimen I suppose is R. firma. It's quite common here in late autumn on Betula twigs.

Here's a poor photo of spores in water.

Marja
  • message #13081
Hans-Otto Baral, 20-10-2010 22:07
Hans-Otto Baral
Re:Rutstroemia?
Yes, that's tres bienn. And it is easily seen that also fresh material contains dead spores (the two on the right).

Zotto