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29-03-2024 09:21

Michel Hairaud Michel Hairaud

Bonjour, Je recherche la description du genre Mac

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

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Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

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Gymnohymenial discomycete on wood
Viktorie Halasu, 16-12-2021 07:56
Viktorie HalasuHello,

these small tufts of asci grew on a bark of an Ulmus twig laying in leaf detritus, soc. Orbilia sp. No excipulum found, only those hooked to almost coiled paraphyses and asci. No free spores, asci weren't ejecting spores even after adding Lugol. Asci seem to be operculate and mostly H+ (some bases looked like H- but I haven't seen their attachment clearly). 
Would anyone point me to a genus? I guess something along Thelebolales, but all those I checked have either subglobose asci and/or are coprophilous. Riparian forest, 220 m elev.
Thanks a lot.

Viktorie
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Hans-Otto Baral, 16-12-2021 08:31
Hans-Otto Baral
Re : Gymnohymenial discomycete on wood
Hi Viktorie

this is not operculate. Conical apex with thick inamyloid apical wall in dead state we have often in Helotiales.

I think this belongs in the Laetinaevia uvidula group. I have a folder "uvidula-like, elongate spores" which contains photos by Blörn Wergen with just these protruding asci. His find was on Cirsium. The paraphyses vary but thy tend to be curved in typical unvidula too.

Zotto
Viktorie Halasu, 01-01-2022 13:22
Viktorie Halasu
Re : Gymnohymenial discomycete on wood
Dear Zotto,
thank you a lot, Naevioideae is a group I'm not at all familiar with. 
Viktorie