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
White, hairy on Populus leaf
Marja Pennanen,
14-10-2018 19:25
Hi,
on a Populus leaf among other things, I found a couple of fruitbodies of tiny (0,2 mm) hairy ones of which I have no idea even of the genus.
The spores are about 8-10x3-3,5.
The asci are 40-50x8-10, faintly IKI+ blue.
There are two kind of hairs or hairs and glassy setas.
Marginal hairs are "Cistellalike" often widest at the base, about 20-40x4-6,
The glassy ones are about 20-60x4-6 and do not change in KOH 5%.
The collection now includes 1 fruitbody, when I accidently managed to pick 2 to the first preparate, so I may still manage to make one preparate.
So, what have I managed to find now except difficulties to find a determination myself?
Sorry, that I could not offer a macrophoto, but it would have shown a normal white hairy, tiny disc.
Marja
Hans-Otto Baral,
14-10-2018 20:28
Re : White, hairy on Populus leaf
Dear Marja
This looks much like Protounguicularia (Olla) transiens which I only know from wood.
Did you see the ascus base? It should be without croziers.
Zotto
This looks much like Protounguicularia (Olla) transiens which I only know from wood.
Did you see the ascus base? It should be without croziers.
Zotto
Marja Pennanen,
14-10-2018 23:06
Re : White, hairy on Populus leaf
Dear Zotto,
I know Olla transiens very well from Sorbus aucuparia.
These glassy hairs have big lumen and are not septate. And then there are the other Cistellalike hairs. Hope this photo shows them both.
Marja
Hans-Otto Baral,
14-10-2018 23:15
Re : White, hairy on Populus leaf
Yes, I see. But it is a bit too unsharp. No idea...
Marja Pennanen,
15-10-2018 12:06
Re : White, hairy on Populus leaf
Hi Zotto,
I was lucky and managed to find some more on an another leaf, that I had collected because of Typhulas. I took some macrophotos and checked one to be sure, that they were the same and they seem to be. I checked the marginal hairs first and then pressed to check the other microscophy. Mr. Murphy is often sitting on my shoulders and I ended pressing too hard.
I'll try, if Seppo has got some ideas of the genus.
Marja
Marja Pennanen,
15-10-2018 18:44
Re : White, hairy on Populus leaf
Hi,
Seppo was not near definitions, but remembered, that Hyalopeziza tianschanika was something like this. And indeed it is, but not quite.
Marja