16-02-2026 11:43
Joeri Belisbetween leaf litter on twig in young salix growth.
14-02-2026 22:45
Tomaz Vucko
Hy!I would ask for some help determing this specie
13-02-2026 03:30
Tomaz Vucko
Hello! I found these immersed perithecia on a stic
14-02-2026 10:58
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous m'aider à
13-02-2026 18:05
Margot en Geert VullingsOn February 9, 2026, we found these small hairy di
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
15-02-2026 04:32
Tomaz Vucko
One more specimen that is giving me some descent a
09-02-2026 14:46
Anna KlosGoedemiddag, Op donderdag 5 februari vonden we ti
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