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:
15-04-2026 19:33
Fátima Durán ManzanequeHi!! I need help, I found this Ascomycete but I d
Ascobolus
Malcolm Greaves,
23-03-2020 18:48
Hello all
This Ascobolus was on Goose dung.
White apothecia turns dark brown on maturity, mostly 0.5mm across. Asci protruding more as it matures and eventually almost looks like A imersus.
There is bluing in Meltzers.
The spores have a smooth surface with few fissures 17-22 * 9-10
Paraphyses mostly cylindrical but one or two with swollen apex.
I have tried looking as Van Brummelen but not managed to come to any firm conclusion especially as some of the words used in the descriptions especially in the key to sections are unknown to me.
Thanks
Mal
Norbert Heine,
24-03-2020 12:44
Re : Ascobolus
Hello Malcolm,
compare with Ascobolus brantophilus. Dissing described this species in 1989 (Four new coprophilous species of Ascobolus and Saccobolus from Greenland, Opera Bot. 100: 43-50). With strongly protruding asci and spores 21-23 x 10-11 with only few longitudinal often forked crackings this should be your species! It seems to be known from old goose dung in arctic areas only. Where did you find it?
I'll attach a pdf with the description and the drawings.
Stay healthy, Norbert
Ascobolus-brantophilus-Dissing-0001.pdf
Michel Delpont,
24-03-2020 14:38
Re : Ascobolus
Hello Malcolm!
I discover your message and I also think of this species as you say Norbert; if this is confirmed it is a very nice find!
Michel.
Malcolm Greaves,
24-03-2020 16:54
Re : Ascobolus
Norbert (and Michel)
Thanks for that. It was found by a lake in the North of England. There were lots of Canada goose, (Branta canadensis) and swans but there may have been others about.
The description by Dissing mentions a gelatinous sheath which I hadn't noticed originally but is definitely there so I think this is a very good fit for the A. brantophilus.
I will send a specimen to Chris Yeates and see if he can confirm. As the area is now in lockdown it is lucky that there are lots of fruitbodies available on the one sample I have.
Thanks once again.
Mal
Thanks for that. It was found by a lake in the North of England. There were lots of Canada goose, (Branta canadensis) and swans but there may have been others about.
The description by Dissing mentions a gelatinous sheath which I hadn't noticed originally but is definitely there so I think this is a very good fit for the A. brantophilus.
I will send a specimen to Chris Yeates and see if he can confirm. As the area is now in lockdown it is lucky that there are lots of fruitbodies available on the one sample I have.
Thanks once again.
Mal
