22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
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
Protounguicularia transiens?
Edvin Johannesen,
04-11-2025 12:43
Hi! One more found on old Populus tremula log in Oslo, Norway. Apos 0.1-0.4 mm. Spores ca. 6-7x3-3.5 micr. with two large guttules. Hairs with glassy, amyloid tips. Some hairs with orange incrustration/resin. Asci IKI+ (blue in Lugol). Not sure about croziers.
I think it looks a lot like Protounguicularia (Olla) transiens, but both asci and spores seem to be a bit too broad. And does that species have coloured incrustations?
Some apos associated with a white anamorph (photo), but probably just a coincidence.
Are there other possibilities?
Thanks!
Edvin Johannesen,
04-11-2025 12:46
Re : Protounguicularia transiens?
Hairs - glassy ones in Meltzer's, incrusted ones in water.
Hans-Otto Baral,
04-11-2025 17:10
Re : Protounguicularia transiens?
Looks much like Olla transiens. Yes, the spores are a bit broad, but such occur.
Living asci are (6.5-)7.5-8.5(-10) broad.
The species occurs in a brown variant with heavy brown incrustation. JP Priou observed spores like you, with partly large drops: JPP 26058
Edvin Johannesen,
04-11-2025 17:23
Re : Protounguicularia transiens?
Thanks again, Zotto. Apos turn a bit brownish with "age".