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06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

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 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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Parorbiliopsis spec.?
Andreas Gminder, 16-01-2020 23:29
Andreas GminderHello,

yesterday we found a small salmon coloured tiny ascomycete on an attached branch of Salix. I was certain to have found an Orbilia, but to my surprise the microscopy revealed something totally different.
I at first even wondered if this could be an operculate ascomycete, but am quite convinced that it is inoperculate.

Asci appr. 100 x 14,5 µm, with croziers (or being pleurorhynch), IKI negative
Spores appr. 15,5 x 7,5 µm, with many medium sized and small oil drops, in IKI with two big glycogen deposites, becoming one-septate when germinating
Paraphyses filiform, septate, once or twice branched and often somewhat curved, some with an amorphes mass at the tip
Excipulum of a kind of textura angularis with quite massive cell walls, giving it an appearance of a gelatinous texture.

Growing on attached branch of Salix caprea, together with Hyalorbilia juliae and Lecanidion atratum, Goslar, Göttingerode, östl. Langenberg, 15.01.2020

Any suggestions very welcome :-)

all the best, Andreas and Sylvie
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Hans-Otto Baral, 17-01-2020 07:52
Hans-Otto Baral
Re : Parorbiliopsis spec.?
Hi Andreas & Sylvie

I conclude you mean ca. 0.5 mm diam. (some people say small for 5 mm).

This is clearly Helotium uvidulum, a species that I have placed in my Laetinaevia folder although the sequence we have does not cluster with L. carneoflavida. Whether it would cluster with L. lapponica, the type species of Laetinaevia, is unclear because of lack of a sequence.

This species is quite frequent and may occur together with Orbiliaceae. Its name uvidulum (= hydrophilous) is strange but I studied the type.

Zotto
Andreas Gminder, 17-01-2020 07:58
Andreas Gminder
Re : Parorbiliopsis spec.?
Dear Zotto

thanks a lot! I have not heared from this species before and wouldn't have searched in Letinaevia.

And yes, small in this case meant 0,3 mm :-)

all the best,
Andreas