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31-03-2026 21:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

31-03-2026 16:20

Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

30-03-2026 12:03

William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

28-03-2026 17:41

Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

30-03-2026 09:53

Yanick BOULANGER

BonjourVoici des petites fructifications poilues s

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On Rhubarb
Marja Pennanen, 20-06-2013 22:33
Seems, that determination is now just impossible for me.
Today I collected some seemingly Orbilias on rhubarb.
In microscope I saw hairs and they are visible in photos, too.
No Obbilia, but maybe some Unguiculella.

These are about 0,3-0,5 mm wide.
Spores are about 10-15x2-3 and asci 40-50x6-8, IKI-.
Paraphyses are narrow, swollen at the tips.
Hairs are about 30-40x3-4, pointed and seems glassy, but no reaction with KOH.

Raitviirs opus gave no answer to my problem: Marja
  • message #23993
  • message #23993
  • message #23993
Hans-Otto Baral, 21-06-2013 07:50
Hans-Otto Baral
Re : On Rhubarb
Hyalopeziza raripila which I have in my Iridinea folder in Naevioideae. Asci may react red but are also negative.
Marja Pennanen, 21-06-2013 09:15
Re : On Rhubarb
Thank you!
That it is, new for me and propably North Carelian :)

Shame on me, it is in Raitviir's opus: Marja