03-02-2026 20:44
Zetti MarioWhen I first saw this white mould on an Agaricus s
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
02-02-2026 14:55
Andgelo Mombert
Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome
02-02-2026 14:33
Andgelo Mombert
Bonjour,Sur le thalle de Peltigera praetextata, ne
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
02-02-2026 09:29
Bernard CLESSE
Bonjour à toutes et tous,Pour cette récolte de 2
01-02-2026 19:29
Nicolas Suberbielle
Bonjour, Marie-Rose D'Angelo (Société Mycologiq
31-01-2026 09:17
Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
Monacrosporium subtile on unknown hyphomycete?
Jan-Arne Mentken,
14-03-2018 19:06
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
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
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
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
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
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








