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18-11-2018 10:49


Bonjour j'ai aperçu ces minuscules asco en forme

14-11-2018 19:07

Andgelo Mombert

Bonsoir,Sur bois mort de feuillu. Apothécies sess

17-11-2018 08:51

Tanja Böhning Tanja Böhning

Bonjour,   J´ai un Asco sur mousse. Il mesure

17-11-2018 18:56

Pintos Angel Pintos Angel

Hello anybody has?Fasciatispora bicincta (Syd. &am

17-11-2018 13:23

Castillo Joseba Castillo Joseba

Me mandan el matgerial en seco desde GaliciaEn mad

17-11-2018 16:07

Lothar Krieglsteiner Lothar Krieglsteiner

... collected 29.10.2018 in the Biosphere Reservat

17-11-2018 12:09

Castillo Joseba Castillo Joseba

Me envian este material seco desde GaliciaCreciend

16-11-2018 19:57

Viktorie Halasu Viktorie Halasu

Hello forum,I'm looking for some protocol how to s

16-11-2018 20:32

Marc Detollenaere Marc Detollenaere

Hello forum,   Could someone help me with the f

16-11-2018 14:00

Castillo Joseba Castillo Joseba

De ayer en bosque de encinasPienso en  Otidea umb

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White, hairy on Populus leaf
Marja Pennanen, 14-10-2018 19:25

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.

  • message #54884
Hans-Otto Baral, 14-10-2018 20:28
Hans-Otto Baral
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.
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.

  • message #54887
Hans-Otto Baral, 14-10-2018 23:15
Hans-Otto Baral
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.

  • message #54893
Marja Pennanen, 15-10-2018 18:44
Re : White, hairy on Populus leaf

Seppo was not near definitions, but remembered, that Hyalopeziza tianschanika was something like this. And indeed it is, but not quite.