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29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

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Olla transiens
Thomas Flammer, 01-03-2025 11:31
substrate: Fagus
diameter 500 µm
Spore mass: 5.5 - 7.6 x 2.3 - 2.8 µm - Q: 2.16 - 3.04 (Ø LxB: 6.7 x 2.5 ØQ:2.7 N: 8)
IKI+
The hair bundles are darker, fusiform and some with kind of resinous incrustations. The hairs have to septations
  • message #81749
  • message #81749
Hans-Otto Baral, 01-03-2025 12:00
Hans-Otto Baral
Re : Hyaloscypha?
I imagine this is Olla transiens. The ascus base should be without croziers.
Thomas Flammer, 01-03-2025 12:06
Olla transiens
yes :-) fits perfectly!
Kosonen Timo, 01-03-2025 12:07
Kosonen Timo
Re : Hyaloscypha?
That would be Olla transiens. The longer the hair the shorter the "glassy" part at the apex. Shorter/developing hairs have more glassiness. It's also dextrinoid. Sometimes the glassiness is barely visible in H2O mount, then MLZ/IKI helps. The spore shape looks like a foot print. There are two somewhat different sequences in Genbank. Both are Olla, but maybe not the same species. I've been trying to figure it out, but I havent got very clever yet. There's some older discussion on this matter, (this Forum), try searching for Olla.

cheers
Timo
Thomas Flammer, 01-03-2025 12:19
Re : Olla transiens
tx for the info.