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09-11-2025 13:20

Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

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Monacrosporium subtile on unknown hyphomycete?
Jan-Arne Mentken, 14-03-2018 19:06
Hello everyone,

in recent days I found this anamorph which seems to be overgrown by another fungus. Only having Ellis & Ellis as useful literature I suggest that it could be Monacrosporium subtile. Ellis & Ellis: Microfungi on miscellaneous substrates, p. 35 say:

"Colonies thin, white, scarcely visible to the naked eye. Conidiophores erect, hyaline, straight or sligthly flexuous, 2-4 thick at base, 1-2 at apex. Conidia solitary, terminial, clavata to cylindric-fusoid, with 1 to 12 septa, hyaline, smooth, 40-72 x 5-7. On Cladosporium, Periconia, etc."

Even though this is probably neither Cladosporium nor Periconia. Could Monacrosporium subtile be an option? Does anyone possibly know this species or can identify the parasitized fungus?

Thank in advance for any idea!

Best regards,
Jan-Arne
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Marcus Yeo, 14-03-2018 19:35
Re : Monacrosporium subtile on unknown hyphomycete?
Jan-Arne

The hyphomycete with synnemata and small shortly ellipsoid conidia is Phaeoisaria clavulata. Not sure about the other fungus, I'm afraid.

Marcus
Jan-Arne Mentken, 14-03-2018 20:11
Re : Monacrosporium subtile on unknown hyphomycete?
Hi Marcus,

I just had a quick look on what Ellis & Ellis write about that species and tried the key again. It worked, Phaeoisaria clavulata is certainly the correct name. Thank you so much!

Let's see if someone can find a name for the parasite.

Best regards,
Jan-Arne
Hans-Otto Baral, 14-03-2018 20:30
Hans-Otto Baral
Re : Monacrosporium subtile on unknown hyphomycete?
Monacrosporium subtile is a dubious taxon fide Rubner 1996, possibly a Dactylella (Orbiliomycetes). In any case it has hyaline conidia.
Jan-Arne Mentken, 14-03-2018 20:36
Re : Monacrosporium subtile on unknown hyphomycete?
Hi Zotto,

I somehow ignored that fact. So it can't be Monacrosporium subtile assuming one would even count it as a species.

Kind regards,
Jan-Arne