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12-02-2026 14:55

Thomas Læssøe

https://svampe.databasen.org/observations/10581810

11-02-2026 19:28

Lothar Krieglsteiner Lothar Krieglsteiner

on small deciduous twig on the ground in forest wi

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by JÃ

11-02-2026 22:15

William Slosse William Slosse

Today, February 11, 2026, we found the following R

09-02-2026 22:01

ruiz Jose

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

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Ã…ge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

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Anamorphe sur Stereum
Thierry Blondelle, 23-03-2025 12:01
Thierry BlondelleBonjour à tous,

Ce sont de petits coussinets blancs ressemblants à des sporodochies qui colonisent ce basidiome de Stéreum.  La sporulation à l'extrémité d'hyphes simples me fait penser à une forme anamorphe du genre Chrysosporium que l'on retrouve sur d'autres champignons. 

conidies: 6.2-6.6 x 3.9-4.1 µm

Si l'un d'entre vous a déjà rencontré une forme ressemblante, je suis intéressé par vos observations.

Merci d'avance

Thierry



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Josep Torres, 24-03-2025 14:32
Josep Torres
Re : Anamorphe sur Stereum
Hi Thierry.
We've seen this around here before.
http://www.ascofrance.com/search_forum/68601
I've seen something very similar as a possible Stilbella sebacea. It all fits, though according to Angel Pintos, it could be Clonostachys.
Best regards.
Thierry Blondelle, 24-03-2025 19:28
Thierry Blondelle
Re : Anamorphe sur Stereum
Hello Josep

Microscopy looks seemly like mine. Just a difference in the fruitbody shape. Rather a sporodochia than a synnemata to my mind. A positive point of Stilbella is its growth on Stereum but few pictures on the web. The only alternative way I found is Helicogloea compressa where hyphae closed in an external gelatinous matrix.

Greetings
Josep Torres, 25-03-2025 08:03
Josep Torres
Re : Anamorphe sur Stereum
Hi Thierry.
I'm not saying that your case is Stilbella sebacea, I'm just saying that I have something very similar to what you're presenting as Stilbella sebacea. You're right in appearance, but it may be due to excess moisture. I also don't see in the few conidia you show the thick walls that Stibella sebacea conidia should have, up to 0.5 microns thick. Everything fits in my study: the width of the hyphae, conidiogenesis, the measurements of the phialides, and also, of course, the morphology and measurements of the conidia.
I think you should measure all these parameters carefully before choosing one species or another.
I'm not aware that the Helicogloea compressa you're suggesting can appear on Stereum basidiomata, and it would be more likely a lignicolous species.
Good luck with your fungus.
Best regards.