20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
Hello together,I'm looking for the correctly name of this Pyxidiophora. I found this fungi on deer dung. The fungus grow on fruit bodys of Lasiobolus cuniculi.
Anamorph spore: 10 µ x 4 µ
Asco spore: 40 - 45 µ x 6 µ ( at least 8 Spore in every fungus )
Ascus: not found
Greetings Sven
Your species of Pyxidiophora seems very close, or perhaps identical, to one that Meredith Blackwell and I studied in the late 1980's. Ours produced similar synnemata and ascomata to yours. It was on moose dung in northern Ontario, Canada. After studying this and other species of Pyxidiophora we concluded that it was impossible to name this and other species accurately until further work could be done on the life histories and genetics of Pyxidiophora species.
Attached is a pdf of our paper.
Regards,
Dave
Blackwell-amp-Malloch-Pyxidiophora-1989-0002.pdf
We can refine the determination if Sven gets measured the beak and the cells that compose it, and the body of perithecium? The shape and size of spores is I believe also important also with the presence or absence of a dark spot at maturity. I know this very complex type whose species are difficult to ascertain.
Regards.
Michel.
I am not certain that measurements of the perithecium will be much additional help. The species can be very similar to one another yet differ considerably in how the ascospores germinate when attached to their mite host. The anamorphs on the dung substrate also differ a lot.
I think the species of Pyxidiophora are numerous and perhaps mostly undescribed. They occur on many substrates, including dung, decaying plant materials and old mushrooms. They appear to have some degree of host-specificity as well. I find them commonly on decaying seaweed on the beach where they seem to have different preferences for their hyphomycetous host.
There are some types available in herbaria, but these generally lack anamorphs and of course we have no idea of how the spores germinate. Ascospores sizes vary within certain limits, but these limits probably encompass many species. Dark spots will appear on most ascospores (all in my experience) at maturity.
This is a really challenging genus that is worthy of a Ph.D. project.
Dave
Michel.
after Sven has sent me this work (Lundqvist, N. 1980 06 16: On the genus Pyxidiophora sensu lato (Pyrenomycetes). Bot. Notiser lSS: 121-144. Stockholm. ISSN 0006-8195.) I think that the inquired species Pyx./ Mycorhynchus arvernensis in the next comes, although a complicated thing. The work from N. Lundquist is also already rather old naturally.
Greetings Peter.
Michel.
you could send me this work?
Thank you Peter.
thanks for your reply! Could you send me too this work of Doveri? I am very interested!
Sven
Michel.
https://www.researchgate.net/publication/278312910_First_record_of_Pyxidiophora_badiorostris_from_France
Best wishes
Norbert
Greetings Peter.
Also with the newer treatise it remains by my estimation.
Sven
Michel.