Accès membres

Mot de passe perdu? S'inscrire

16-11-2025 21:09

Robin Isaksson Robin Isaksson

Anyone recognize this acc. to pictures.? Found on

17-11-2025 21:46

Philippe PELLICIER

Bonjour,Récolté sur bois pourrissant de feuillu

17-11-2025 21:57

Philippe PELLICIER

Bonjour,Récolté sur bois de feuillu mort dur, no

17-11-2025 19:14

herman lambert

Apothécie discoïde 0.6 cm diam., orangeFace hymÃ

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

15-11-2025 23:22

Mario Filippa

Hello,this is what I think to be Hymenoscyphus mac

15-11-2025 20:25

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Nov. 2025

15-11-2025 09:21

Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

14-11-2025 18:31

Lothar Krieglsteiner Lothar Krieglsteiner

Hello,can somebody provide me with a file of:Rothe

12-11-2025 21:47

ruiz Jose

Hola a todos, me envían esta colección en resto

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Patellaria on Tilia
Martin Bemmann, 22-06-2009 22:57
Martin BemmannHello all,

this is a today's find on a dead branch of Tilia. I found the same or similar one in January but could not end in a "terminating" determination. So here is another try:
  • message #8281
Martin Bemmann, 22-06-2009 22:59
Martin Bemmann
Re:Patellaria on Tilia
Asci are 134-142 x 16-21 µm:
  • message #8282
Martin Bemmann, 22-06-2009 23:00
Martin Bemmann
Re:Patellaria on Tilia
Spores 40-50x9-10 µm:
  • message #8283
Martin Bemmann, 22-06-2009 23:01
Martin Bemmann
Re:Patellaria on Tilia
The exudate is darkblue with a greenish touch:
  • message #8284
Martin Bemmann, 22-06-2009 23:02
Martin Bemmann
Re:Patellaria on Tilia
IKI reaction is negative:
  • message #8285
Martin Bemmann, 22-06-2009 23:04
Martin Bemmann
Re:Patellaria on Tilia
A detail of the asco-tip (again in IKI):
  • message #8287
Martin Bemmann, 22-06-2009 23:09
Martin Bemmann
Re:Patellaria on Tilia
and a view of the mess on my preparation (IKI) with paraphyses and a lot of "free oildrops"(?)

Is it P. crassispora?

Best regards, Martin
  • message #8291
Jacques Fournier, 23-06-2009 10:18
Jacques Fournier
Re:Patellaria on Tilia
Hi Martin,
I do not know P. crassispora. Where is it cited?
Why not merely P. atrata? Hawksworth and Kutorga (1997) gave the wide range of (20-) 30-45 (58) x (6-)7-9(12) µm for the spores of this taxon. You should also check the number of septa, they gave 5-11.
Best wishes,
Jacques
Martin Bemmann, 23-06-2009 10:39
Martin Bemmann
Re:Patellaria on Tilia
Hi Jaques,

P. crassispora is a nom.prov. in the Key on Zotto's DVD. One of the features that separates them from atrata is the colour of the exudate that should not be bluish at atrata but "blackish-olive-brownish".

Best regards,
Martin
Jacques Fournier, 23-06-2009 10:45
Jacques Fournier
Re:Patellaria on Tilia
yes I agree this bluish colour is unusual and not typical for atrata. Glad to learn that! Thanks!
jacques
Martin Bemmann, 23-06-2009 22:56
Martin Bemmann
Re:Patellaria on Tilia
Thank you Jacques for your confirmation of the exudate colour.
I never saw atrata as it should be...
That's why I was unsure and asked for comments.

Best regards, Martin