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26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

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Menispora ?
Gérard MELARD, 23-04-2021 19:10
Hello to all,
Here is a harvest realized on Ulmus branch:
- Black, diffuse, erumpent and spherical perithecia, some with a well developed neck
- Asci 80-90 x 10 octospores biserial, no reaction to Melzer observed
- Filiform paraphyses with rounded apex, refractive content
- Spindle-shaped hyaline spores, 18-20 x 5.5-6, 1-3 septa, 1-2 guttules per locule
- Anamorph not observed

I came to the hypothesis that it could be a Zignoella and therefore perhaps Menispora caesia Preuss 1851? ... but I lack documentation on the subject.


Thank you in advance for your opinions or suggestions,
Sincerely,
Gérard


 

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Nick Aplin, 25-04-2021 21:35
Re : Menispora ?
Salut Gérard,

I think this might be Massarina rubi (which probably belongs in the genus Brunneofusispora but the combination hasn't yet been published). The 3-septate spores are in my opinion overmature.

Amités,
Nick

Gérard MELARD, 28-04-2021 22:54
Re : Menispora ?
Thank you Nick for the suggestion, I will look in that direction.
Best regards,

Gérard

Gérard MELARD, 30-04-2021 22:36
Re : Menispora ?
Bonsoir,


Cette récolte a finalement été déterminée comme Lophiostoma vicinellum avec l'aide de Björn Wergen que je remercie beaucoup.
Bien cordialement,

Gérard