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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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Calycina sp. on Impatiens glandulifera
Thorben Hülsewig, 13-10-2019 14:31
Hi there,

I have here a Calycina sp. which I cannot determine.
My first idea was Calycina herbarum, but the IKI reaction was blue instead of red.
Or can C. herbarum also have a red IKI reaction ?


best regards,
Thorben

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Hans-Otto Baral, 13-10-2019 17:14
Hans-Otto Baral
Re : Calycina sp. on Impatiens glandulifera
Hallo Thorben

C. herbarum reacts blue at low and red at high concentration. This is typical C. herbarum.
Thorben Hülsewig, 13-10-2019 19:50
Re : Calycina sp. on Impatiens glandulifera
Hallo Zotto,

Thank you for this information, because I saw everywhere on the Internet only the red reaction in Lugol.
That's why I thought there was only the red reaction.

best regards,
Thorben
Hans-Otto Baral, 13-10-2019 20:36
Hans-Otto Baral
Re : Calycina sp. on Impatiens glandulifera
Das ist aber erfreulich, dass Lugol so verbreitet genutzt wird :-))