01-12-2023 21:54
Marian Jagers
Does anyone recognize this species? Apothecia in
04-12-2023 10:01
François BartholomeeusenDear forum participants, On a thin twig of Myrica
03-12-2023 19:21
ruiz Jose antonioHola a todos, en un talud cercano a un riachuelo,
28-11-2023 23:10
Villalonga PacoOn basic soil in humid bank, Teruel, Spain, around
25-11-2023 14:49
Kees van Oorde
Very small fruiting bodies on affected leaves. Fou
30-11-2023 14:33
Béatrice Senn-Irletalll issues of Mycologia Helvetica (1983-2000) are
28-01-2014 10:50
Gernot FriebesHi,I'm looking for these three standard references
25-11-2023 18:14
Danny Newman
higher resolution images available at inaturalist.
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
Regards 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
