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19-01-2019 18:53

Blasco Rafael Blasco Rafael

Hola, alguno de ustedes conoce este hongo localiza

18-01-2019 22:14

Edvin Johannesen Edvin Johannesen

Dear all, This nectriaceous species was growing e

18-01-2019 23:00

Joop van der Lee

Found on cow dung.Apothecia at maturity surrounded

19-01-2019 00:38

Elsa Sousa

Good evening,I found this on leaf debris, almost Q

18-01-2019 18:17

Lothar Krieglsteiner Lothar Krieglsteiner

... near Spraitbach (Baden-Wuerttemberg n. Schwäb

18-01-2019 18:10

Lothar Krieglsteiner Lothar Krieglsteiner

... near Spraitbach (Baden-Wuerttemberg n. Schwäb

18-01-2019 09:44

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

18-01-2019 00:24

laurent magne

bonjour je vous propose ce que je pense etre un un

17-01-2019 20:13

Ethan Crenson

Hello all, Found in Bronx, New York City last wee

17-01-2019 16:10

Peter Thompson

Hello Everyone,Does anyone have a species descript

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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
  • 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.
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
  • 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.

Marja
  • message #54893
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