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02-06-2026 14:33

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a PDF copy of the followin

02-06-2026 17:58

Louis DENY

Bonjour forum, Sur feuille de Populus tremula, en

31-05-2026 22:53

éric ROMERO éric ROMERO

Bonjour tous, Je n'ai pas d'idée pour cette esp

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

12-11-2019 10:32

Miguel Ãngel Ribes Miguel Ángel Ribes

Hi againExactly at the same place than my previous

25-12-2019 17:54

Valencia Lopez Francisco Javier

Hola a todos/asEstas supuestas pezizas estaban en

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

28-08-2014 18:36

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

30-05-2026 21:12

Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

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Helotiales
Koszka Attila, 31-10-2023 14:55
A beautyful Helotiales, but I don't even know the genus...
Apothecia 2-3 mm in diameter, always with stalk.
Growing on the ground, on dead parts of herbs, always near mosses.
Spores 18-20 x 8-10 um. Asci amiloid.
Any suggestion?
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Hans-Otto Baral, 31-10-2023 15:48
Hans-Otto Baral
Re : Helotiales
You are sure this is on a herb and not on moss? Are the living paraphyses without conspicuous guttulation? The apical ring looks almost like a Sclerotiniaceae, how is the excipulum? The micros remind me a bit of Sclerotinia trifoliorum, with heterogeneous spores in the asci.
Koszka Attila, 31-10-2023 17:14
Re : Helotiales
Many thanks! It's not clrear to me, which is the real host. The fruitbodies are always growing near moss, but not directly between the moss, nor on the living moss.

Living paraphyses hyaline, without guttulation, rarely with sparse deposit on their top.

The ectal excipulum with short, shligthly inflated, rounded cells.

Medullary excipulun reminds textura intricata, but mainly with paralel hyphae.

As you see, the shape and size of freshly ejected spores are extremely variable.
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Hans-Otto Baral, 31-10-2023 18:00
Hans-Otto Baral
Re : Helotiales
Yes, this is clearly S. trifoliorum. It must emerge from small sclerotia without contact to a host. In reality it must have developped in a Fabaceae.

You see very well the heterospory of the asci and the small nuclei in the free spores (they must be four per spore, maybe two in the small spores.
Koszka Attila, 31-10-2023 18:24
Re : Helotiales
Excellent, thanks!