20-12-2025 23:08
Patrice TANCHAUDBonsoir, récolte sur sol sablonneux dans l'arriÃ
20-12-2025 15:47
Mirek GrycHi.These grew on pine wood that was heavily covere
18-12-2025 21:17
Pol DebaenstThe identification took me to Byssonectria deformi
15-12-2025 07:09
Danny Newman
indet. Rutstroemiaceae sp. on unk. fallen leavesMc
19-12-2025 10:10
Patrice TANCHAUDBonjour, récolte réalisée en milieu dunaire, a
18-12-2025 17:23
Bruno Coué
Bonjour,je serais heureux d'avoir votre avis sur c
18-12-2025 18:07
Margot en Geert VullingsThese plumes were found on rotten wood.They strong
17-12-2025 18:35
Michel Hairaud
Bonjour à tous/Hi to everyone I am passing along
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