Accès membres

Mot de passe perdu? S'inscrire

17-10-2025 18:45

Riet van Oosten Riet van Oosten

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

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

15-10-2025 16:39

Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

« < 1 2 3 4 5 > »
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