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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolte sur branchette de Castanea dans u
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21-07-2024 10:28
![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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19-07-2024 11:08
![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
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16-07-2024 18:32
![Andgelo Mombert](/uploads/user_vgn/Mombert-0001.jpg)
Bonsoir, Un discomycète sur Liochlaena lanceolat
Rutstroemia firma ou Rutstroemia alni ?
Bernard CLESSE,
18-02-2022 16:40
![Bernard CLESSE](/uploads/user_vgn/CLESSE-0001.jpg)
Dans l'eau, les spores font (sans les appendices) : 20-24x7-8,5 µm et les asques : 150-181x10-15 µm.
Je n'arrive pas à choisir entre Rutstroemia firma et Rutstroemia alni.
Merci pour vos conseils !
Bernard
Hans-Otto Baral,
18-02-2022 20:44
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
Re : Rutstroemia firma ou Rutstroemia alni ?
Neither of them. I suspect R. bolaris on Carpinus. You must study the ectal excipulum, is it of isodiametrical cells or prismatica?
R. alni has spores *17-24 x 7-9 (matching yours, whereas R. firma has *15-23 x 4.5-6. R. alni occurs with multiguttulate spores as well as with two large and many small LBs. No idea if this has something to say. In R. firma I never saw multiguttulate spores, which are characteristic of R. bolaris.
One reason for R. bolaris is, that you found it now. It is a sprin fungus, though my notes say III-IV. R. alni and R. forma are autumn fungi.
Try to find out the host, with a radial section it is easy to recognize Alnus by the ladder-like perforations that Carpinus does not have.
Bernard CLESSE,
18-02-2022 21:01
![Bernard CLESSE](/uploads/user_vgn/CLESSE-0001.jpg)
Re : Rutstroemia firma ou Rutstroemia alni ?
Yes Zotto, you are absolutely right. I was too quick in my conclusions and I had forgotten Rutstroemia bolaris which I nevertheless collected several times. Andgelo Mombert also put me back on the right track.
Kind regards,
Bernard
Kind regards,
Bernard
Michel Hairaud,
20-02-2022 21:25
![Michel Hairaud](/uploads/user_vgn/Hairaud-0001.jpg)
Re : Rutstroemia firma ou Rutstroemia alni ?
Bonsoir,
Of course I approve R. bolaris . I only want to add that we regularly collect it in Februrary (in West of France) and even earlier than Bernard's find
Michel
Of course I approve R. bolaris . I only want to add that we regularly collect it in Februrary (in West of France) and even earlier than Bernard's find
Michel
Bernard CLESSE,
20-02-2022 21:30
![Bernard CLESSE](/uploads/user_vgn/CLESSE-0001.jpg)
Re : Rutstroemia firma ou Rutstroemia alni ?
Grand merci pour ton info sur la phénologie de cette espèce, Michel !
Je me rappellerai de cet élément important signalé par Zotto et que tu me confirmes aussi !
Bien amicalement,
Bernard
Je me rappellerai de cet élément important signalé par Zotto et que tu me confirmes aussi !
Bien amicalement,
Bernard
Michel Hairaud,
20-02-2022 22:15
![Michel Hairaud](/uploads/user_vgn/Hairaud-0001.jpg)
Re : Rutstroemia firma ou Rutstroemia alni ?
Donc à l'année prochaine même époque, Bernard sur ce forum ? -:) Michel