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21-10-2025 23:13

Pyxidiophora
F. JAVIER BALDA JAUREGUI

Hello to everyone.Did you think it could, be a pyx

22-10-2025 06:43

Orbilia...
Ethan Crenson

Hi all, I'm having some difficulty with this Orbi

22-10-2025 14:45

Dactylospora stygia?
Lukas Verboom

Dear all,I collected this in the Netherlands, on t

22-10-2025 11:13

Champignon stade imparfait
Jean-Luc Ranger

Bonjour,  Petites boules plus ou moins sphériqu

07-09-2025 08:19

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

21-10-2025 21:25

Ombrophila morthieriana var. megalospora
Philippe PELLICIER

Bonjour,J'ai récolté en septembre sur une litiè

17-10-2025 18:45

Sepultariella semi-immersa
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025.

21-10-2025 21:34

Peziza badia?
Margot en Geert Vullings

This cup fungus was found on the ground in a damp

21-10-2025 04:52

Chlorociboria aeruginella?
Francois Guay Francois Guay

I found what might be Chlorociboria aeruginella on

25-11-2016 13:54

Blue-green spored club-shaped fungus on seeds of Washingtonia
Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

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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,


François

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