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21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

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On Prunus padus bark
Marja Pennanen, 10-03-2011 18:38
Hello,

finaly I had time to study this immersed one, that I found a week ago.
Luckily it wasn't spoiled yet. These are 0,5-1mm wide:
  • message #14644
Marja Pennanen, 10-03-2011 18:39
Re:On Prunus padus bark
The overview of microscophy:
  • message #14645
Marja Pennanen, 10-03-2011 18:41
Re:On Prunus padus bark
The spores are about about 50-85x4-5 , septate and contain small droplets:
  • message #14646
Marja Pennanen, 10-03-2011 18:47
Re:On Prunus padus bark
The asci are about 75-95x10. There are loads of narrow (about 2 wide) paraphyses and asci are difficult to see.

This may be a Stictis and I have a link to Mycotaxon side, where they are represented in numerous pages, which have to go through one after another. It would take hours to try to determine with them. So I can only hope, that this species is familiar to someone.

Marja
  • message #14647
Martin Bemmann, 10-03-2011 18:57
Martin Bemmann
Re:On Prunus padus bark
Hi Marja,

on p. 269 in Sherwoods work on Ostropales you will find an host index. Prunus is represented on p. 71 and 182.
Maybe this helps...

Best regards,

Martin
Gernot Friebes, 10-03-2011 19:20
Re:On Prunus padus bark
Hi Marja,

I think this could be a Karstenia from the K. idaei-group. Try IKI and you should see a nice reaction of the hymenium.

Best wishes,

Gernot
Marja Pennanen, 10-03-2011 21:14
Re:On Prunus padus bark
Dear Martin,

thank you for the hint of the host index!

Dear Gernot,

I really wish to find species of generas named after our Karsten :)
The spores and asci fits quite well, but I tried IKI and don't remember noticing anything very special.
I got a feeling, that there was something glue-like material on the asci and paraphyses.
I had to push hard just to see any asci.
Maybe the material looks like this:

Marja
  • message #14650
Hans-Otto Baral, 10-03-2011 21:14
Hans-Otto Baral
Re:On Prunus padus bark
You are right, Gernot, I think it is K. idaei.

Zotto
Marja Pennanen, 10-03-2011 21:22
Re:On Prunus padus bark
Oops, two votes for Karstenia idaei.

If this stands, it would mean a new genera for me, a new species for Finland and that my smile will be very wide :)

Marja