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20-04-2019 01:02

Valencia Lopez Francisco Javier

Hola a todos/asAdjunto fotos de unas supuestas Tri

21-04-2019 21:40

Joop van der Lee

Found on cow dung.Measurements of the perithecia a

21-04-2019 12:06

Castillo Joseba Castillo Joseba

Me mandan el material desde Galicia,  recolectado

20-04-2019 10:47

Castillo Joseba Castillo Joseba

me envian esta muestra recolectada en madera de eu

12-04-2019 14:11

Michel Hairaud Michel Hairaud

Bonjour, Voici une Helotiale manifestement liée

20-04-2019 05:16

Roland Labbé

Bonjour ! Voici un anamorphe inconnu de nous, Sp

18-04-2019 15:25

Castillo Joseba Castillo Joseba

Especimen  con apoterios en forma de disco de col

16-04-2019 15:10

Malcolm  Greaves Malcolm Greaves

HelloCan someone help with this found on a dead/dy

14-04-2019 16:53

Marc Detollenaere Marc Detollenaere

Dear forum, On the bark of Larix I found some som

13-01-2019 21:29

Ethan Crenson

I find this unknown (to me) asco in the same locat

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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