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Mot de passe perdu? S'inscrire

27-09-2023 16:38

Ismael Wind

As mentioned in the title. Someone a clue what thi

24-09-2023 20:28


Bonjour, Débutant dans le monde des ascomycètes

27-09-2023 17:21

Georges Greiff

Hi there,I recently noticed tiny, reddish perithec

22-01-2007 17:27

Perz Piotr

Hi, I'm looking for publication: Holm, K. & 

25-09-2023 11:04

Di Napier

Found on a rotting log in Warwickshire, UK.  I th

23-09-2023 14:08

Laurent Bonneau Laurent Bonneau

Bonjour, j'ai trouvé ces ascos sur Laissées de s

22-09-2023 18:10

Marc Detollenaere Marc Detollenaere

Dear Forum,On black remains, probably stromatized

21-09-2023 19:08

Peter Welt Peter Welt

Literature search. Find these two articles. Who ca

20-09-2023 18:51

Ismael Wind

Is this hypomyces broomeanus? It was growing on he

15-09-2023 15:54

Jean-Luc Ranger

Je pense à un Dasyscyphus, 0,6 mm, asques 65 x5µ

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Which Cladosporium is this?
François Bartholomeeusen, 13-09-2023 15:35
Dear forum members,

Under a pile of grass clippings (grass and herbs) I found several conidiomata. Under the microscope I found no conidiphores only loose conidia and hyphae.
The hyphae are brown and thick-walled, smooth or sometimes also verruculose and septated. The conidia are citriform with conidial hila and following dimensions: Me = 13.1 × 10 µm ; Qe = 1.3. First hyaline later black.

Would this belong to the genus Cladosporium and can anyone determine the species?

After two weeks I found Rhopalomyces magnus on the substrate so probably among the rotten grass is also dung.

All help is welcome!

Best regards,

François Bartholomeeusen

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Przemyslaw Drzewiecki, 13-09-2023 23:01
Re : Which Cladosporium is this?
Hello, It reminds me more of Chaetomium sp. ?
Regards Przemek
François Bartholomeeusen, 14-09-2023 11:51
Re : Which Cladosporium is this?
Thank you very much Przemek,

thanks to your help and the literature I found, I think I choose: Chaetomium elatum.
The spore dimensions and description seem correct: "limoniform, biapiculate or umbonate, bilaterally flattened, brown when mature, with an apical germ pore".
The description of the terminal hairs is also correct : "verrucose or warty, brown, erect or flexuous in the lower part, 2.5-4.5 ?m diam. near the base, repeatedly and dichotomously branched at right to nearly straight angles in the upper part, with relatively flexible, flexuous or undulate terminal branches".
In the attached photo, near the septum, I see something that looks like a crozier!

Best regards and thanks again,


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