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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 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

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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Leucostoma ?
Andreas Millinger, 07-12-2025 22:43
Andreas MillingerGood evening,

tried to determine with Munks Valsa-key, but was not successful.


Substrate is not exactly known, some decidiouos tree/shrub in a lowland mixed forest, twigs of 1cm in diametre on the forest ground.


Fruitbodies growing inside the bark, leaving black lines on the wood. Stromata 1-2 mm ellipsoide consisting of many (10-20) pertithecia with ostioles constricted as a bundle of worm-like black structures visible. ostole-tips are somewhat furrowed.


Asci 28.8-32.3-35.2 x3.9-4.2-4.4, the porus is weakly blue in Lugol


Spores allantoid, strongly curved, with a drop on each pole, [3.6-4.1-4.6] x [1.2-1.4-1.7] Q = [2.4-3.0-3.7] N = 24


Thanks a lot for any hint!


andreas

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Enrique Rubio, 07-12-2025 22:56
Enrique Rubio
Re : Leucostoma ?
Hi Andreas.
Compare it with Peroneutypa heteracantha. The ascospores are hyaline in Leucostoma and related genera and the asci I negative.
Andreas Millinger, 08-12-2025 09:10
Andreas Millinger
Re : Leucostoma ?
Hello Enrique,

Thank you very much for your help, I was completely wrong and lost!
Another big thank you in this place for sharing your brilliant pictures on your web page!

andreas