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14-03-2026 13:51

Phylloscypha sp
Thierry Blondelle Thierry Blondelle

Hi everybody Under Quercus ilex, i hesitate to na

12-03-2026 19:44

Ostropoloid fungus on Hibiscus
Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

11-03-2026 17:36

Help for Genus and Species ID
Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 15:45

Dematioscypha cf. olivacea
Åge Oterhals

Dear forum,I found this small discomycete on a ver

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

08-03-2026 14:05

Helvella lacunosa
Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 16:17

Mollisia atlantica
Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

Octospora
David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Saccobolus minimoides ?
Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

Sp
ruiz Jose

Hola, me paso esta colección en madera de pino, t

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Very small global ascomycete, hyalin, smooth spores. Any ideas?
S. Rebecca, 22-08-2021 15:19
I found this tiny ascomycete in a bank of earth close to a stream in the Austrian Alps where I live (1200m). I have been asking around, but do not have any good leads yet. I was able to collect about 8 specimens and they do have a smell but hard to describe. Maybe a little like metal? I hope someone recognizes something.

Due to the spores being translucent, I thought maybe Orbilia, but someone said absolutely not Orbilia. Possibly something related to hypogae?

The specimens have a hole in them.
J- (Lugol)
Spore size 18-22µm
Ascus = 8 spores
Each spore has a hull or sack and you can see them split.

I can add microscopic features if you tell me what to look for. 
Thanks, -Rebecca
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Gernot Friebes, 22-08-2021 15:44
Re : Very small global ascomycete, hyalin, smooth spores. Any ideas?
Dear Rebecca,

as I have posted in a different forum a short while ago, this looks like Stephensia (Hydnocystis) bombycina (compare to https://www.nahuby.sk/obrazok_detail.php?obrazok_id=588562).

Best wishes,
Gernot
S. Rebecca, 22-08-2021 15:51
Re : Very small global ascomycete, hyalin, smooth spores. Any ideas?
Thank you so much Gernot! The soul can rest. :-)
Adam Polhorský, 22-08-2021 16:37
Re : Very small global ascomycete, hyalin, smooth spores. Any ideas?
Hi Gernot, Rebecca

Some time has passed since that find. I now think, I might have not identified it correctly.

Stephensia colomboi might be better name for our collections. S./H. bombycina is a larger, hypogeic species, whereas colomboi is smaller, often only partially buried. Both seem to have an unpleasant odour.

A.
Gernot Friebes, 22-08-2021 17:17
Re : Very small global ascomycete, hyalin, smooth spores. Any ideas?
Thanks for this hint, Adam. I don't have the original description of S. colomboi but I compared with Sarasini et al. (Funghi Ipogei Lariani), where it is mentioned that S. colomboi should have an "insignificant" odour, wheres S. bombycina is said to smell much more intensely (like fried onions or boiled cabbage). Macroscopically this collection shows more similarities with S. colomboi, so I concur with you that this is likely the better name.

Best wishes,
Gernot