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:
Pyrenomycete with hyaline thickwalled hairs
Maren Kamke,
12-03-2016 12:43
Hi everybody,I found a few perithecia (diameter 0,35 mm) on Sambucus nigra without bark. Spores, hyaline, big 34-46 x 7,5-10,1 µm, becoming 1-septate. Hairs thickwalled (up to 365 µm long and 11 µm wide) with refractive walls. Asci 115-130 x 12-20 µm, IKL negative.
I thought first of an Echinosphaeria sp., but I understand that this genus has brown setae. Maybe a Trichosphaeria?
Regards, Maren
Maren Kamke,
13-03-2016 13:30
Re : Pyrenomycete with hyaline thickwalled hairs
Hi again,
I found some immature perethecia on another stick. There are accompanying conidia.
Regards, Maren
I found some immature perethecia on another stick. There are accompanying conidia.
Regards, Maren
Jacques Fournier,
15-03-2016 15:17
Re : Pyrenomycete with hyaline thickwalled hairs
Hi Maren,
I think your fungus is related to the Helminthosphaeria stuppea complex (se Miller et al., 2014, Mycologia 106: 505-524), but ascospore size does not fit.
Could you check under the stereomicroscope if the ostiole is surrounded by 3-4 tubercles, as in typical H. stuppea?
Cheers,
Jacques
I think your fungus is related to the Helminthosphaeria stuppea complex (se Miller et al., 2014, Mycologia 106: 505-524), but ascospore size does not fit.
Could you check under the stereomicroscope if the ostiole is surrounded by 3-4 tubercles, as in typical H. stuppea?
Cheers,
Jacques
Maren Kamke,
15-03-2016 22:46
Re : Pyrenomycete with hyaline thickwalled hairs
Thank you Jacques,
I checked on tubercles, but there are none. I think it is indeed a species related to Helminthosphaeria stuppea. Maybe it's the same Europaean species which has been discussed many times here under the name Lasiosphaeria stuppea.
http://www.ascofrance.fr/search_forum/40144
http://www.ascofrance.fr/search_forum/14026
http://www.ascofrance.fr/search_forum/37289
Regards, Maren
I checked on tubercles, but there are none. I think it is indeed a species related to Helminthosphaeria stuppea. Maybe it's the same Europaean species which has been discussed many times here under the name Lasiosphaeria stuppea.
http://www.ascofrance.fr/search_forum/40144
http://www.ascofrance.fr/search_forum/14026
http://www.ascofrance.fr/search_forum/37289
Regards, Maren