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07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

05-03-2026 16:30

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 19:29

William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

03-03-2026 20:34

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

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Pyreno on Equisetum
Enrique Rubio, 25-06-2023 13:10
Enrique RubioDo you have some idea that help me with this non-stromatic pseudotecia up to 0.2 mm in diam. inmersed on stems of an Equisetum species? The ascospores are hyaline at first, but pale brownish with age, with the lower cell narrower than the upper one.
Many thanks in advance.
  • message #76442
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Bernard Declercq, 25-06-2023 15:26
Bernard Declercq
Re : Pyreno on Equisetum
Hi Rubio,

Does those spores have a sheath? If so, this is perhaps Lophiostoma amphibium (Magnes & Hafellner) Aptroot & K.D. Hyde.

Regards,

Bernard
Enrique Rubio, 25-06-2023 17:41
Enrique Rubio
Re : Pyreno on Equisetum
Thank you, Bernard
I can't find any information on this taxon, would you happen to have any?
Viktorie Halasu, 25-06-2023 21:58
Viktorie Halasu
Re : Pyreno on Equisetum
Hello,

the orig. description is here: https://www.researchgate.net/publication/283923700_Ascomyceten_auf_Gefasspflanzen_an_Ufern_von_Gebirgsseen_in_den_Ostalpen

The new combination was published in this chapter, but I haven't been able to find either the chapter nor the whole book. https://fungi.myspecies.info/content/marine-and-estuarine-species-lophiostoma-and-massarina

Viktorie
Enrique Rubio, 26-06-2023 10:53
Enrique Rubio
Re : Pyreno on Equisetum
I would like to thank you once again for your prompt and comprehensive help, Viktorie.
And also to Bernard, although having read the description of Massarina amphibia, I don't think it can be this species with hyaline spores surrounded by a compact gelatinous sheath.
Chris Yeates, 29-06-2023 00:27
Chris Yeates
Re : Pyreno on Equisetum
The size of the spores is larger but this looks very like the image here. I got the name from Holm & Holm "Nordic equiseticolous Pyrenomycetes". They give "Spores sub- fusiform, (12-)16-18 x 4-5 µm" . . .

Best wishes

Chris
  • message #76479
Enrique Rubio, 29-06-2023 10:45
Enrique Rubio
Re : Pyreno on Equisetum
Dear Chris.
I had considered that possibility, but the spores of that Didymella are described as hyaline and not brunnescent as in my collection. And the host, although this is quite irrelevant, was not Equisetum silvaticum but E. telmateia.
Finally, I think this collection could be close to Scheuer's concept of Massarina pusillispora, although Massarina is also a genus with hyaline spores. These genera are really complex.
Anyway thank you very much for your opinion.
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  • message #76480