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02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

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2015-05-09 On Eucalyptus leaves
Lepista Zacarias, 12-05-2015 22:06
Hi everyone again,
Definitely, this was the day of "thumbnails". There were two fungi (at least) parazitizing the old leaves of an Eucalyptus. One of them has very small roundish back apothecia while the other, also blackish, has irregular form. The former seemed like Arthonia (though non lichenized), but after microscopy I think that probably is closer to Arthopyrenia. Here are some of its features:
- Asci of aproximate dimensions of 30-38 x 9-13 µm;
- Spores of aproximate dimensions of 9-11.5 x 2.2-2.7 µm.
The other fungus has dark-brown roundish ascopores of dimensions: 15-16 x 12.7-14.5 µm.
Do you have any hint about any of them?
Thanks in advance,
zaca
  • message #35824
Björn Wergen, 12-05-2015 23:23
Björn Wergen
Re : 2015-05-09 On Eucalyptus leaves
Hi Zaca,

if you want, you can send me this collection. I guess there is something like Morenoina or Asterina on that leaf.

regards,
björn
Lepista Zacarias, 13-05-2015 00:22
Re : 2015-05-09 On Eucalyptus leaves
Hi Björn,
Thank you. I will contact you by e-mail.
Regards,
Zaca