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19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

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

18-03-2026 17:22

Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Thomas Læssøe

https://svampe.databasen.org/observations/10505643

27-02-2026 11:21

Yannick Mourgues Yannick Mourgues

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

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Dumontinia tuberosa?
Sacchi Ezio, 17-05-2023 08:53
Bonjour a tous.
A la mi-mars dans un parc municipal j'ai trouvé ces ascomycètes. Sur le site il y a une abondance de Ranunculus ficaria mais une absence absolue d'Anemonoides nemorosa
Question : est-ce toujours Dumontinia tuberosa ?
Merci pour votre réponse, bonne journée, ciao. Ezio
  • message #76143
  • message #76143
  • message #76143
  • message #76143
Hans-Otto Baral, 17-05-2023 09:00
Hans-Otto Baral
Re : Dumontinia tuberosa?
Not easy to say! The Anemone might have disappeared. Since the connection to the roots is usually not visible, you need to provide microscopy. The spores at oil immersion are required and the nuclei in them (not the LBs!) need to be seen (4 or 2). Also the ectal excipulum is helpful to distinguish the species on Ranunculus from that on Anemone.
Sacchi Ezio, 17-05-2023 09:09
Re : Dumontinia tuberosa?
Bonjour Hans-Otto,
La différenciation entre Dumontinia tuberosa et Sclerotinia ficariae est-elle toujours valable ?
Merci, bonne journée.
Ezio
Hans-Otto Baral, 17-05-2023 09:33
Hans-Otto Baral
Re : Dumontinia tuberosa?
Yes of course. But S. ficariae is not the right name, that is, to the present knowledge, only a synonym of S. sclerotiorum as it has too small apothecia. You must search in different forums for "binucleata", which is a provisional name.
Sacchi Ezio, 17-05-2023 10:02
Re : Dumontinia tuberosa?
J'ai récemment lu cet article : https://www.researchgate.net/publication/314966803_Morphological_and_Ultrastructural_Characteristics_of_Dumontinia_tuberosa_Bull_LM_Kohn_from_Ranunculus_ficaria_L?fbclid=IwAR3RujNjga9TSVqQ4b7bXmERuYwo-mInWBHWSdB2ze X ZGv3ezj0qLCSY4kE.
Où l'on parle de D. tuberosa parasite de R. ficariae : pour cela j'étais dubitatif...
Ciao, Ezio