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23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

22-04-2024 08:54

Rafael Cabral

Bonjour à toutes et tous, Quelqu'un pourrait-il

22-04-2024 20:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon.Does anyone know this anamorph?It g

21-04-2024 14:29

B Shelbourne B Shelbourne

• Genus Brunnipila: Distinct macro and habitat,

19-04-2024 14:28

B Shelbourne B Shelbourne

Cudoniella tenuispora: Distinctive macro and habit

20-04-2024 16:02

Michel Hairaud Michel Hairaud

Bonjour,On me fait part, pour diffusion d une list

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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