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28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

28-04-2026 21:53

William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

28-04-2026 21:50

Pablo Sandoval Pablo Sandoval

Hola a todos,Espero se encuentren bien. Hace mucho

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

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Trichopeziza subsulphurea ?
Ethan Crenson, 11-12-2019 23:25
Hello all,
This was found by a friend in New York City last Saturday on decorticated hardwood. I think it's Trichopeziza subsulphurea. Apothecia are up to 2mm in diameter with a cream-white hymenium surrounded by bright yellow hairs. The hairs measure about 50µm long and have yellow encrustations. When treated with KOH the hairs, presumably, give off a yellow pigment (see last photo). Asci are 54-70 x 4-6µm, IKI-. Croziers? I think no, but correct me if I am wrong. Spores are fusiform, aseptate, 8-11 x 2.5µm, hyaline with guttules.
Thank you in advance!
Ethan
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Hans-Otto Baral, 12-12-2019 08:23
Hans-Otto Baral
Re : Trichopeziza subsulphurea ?
Hi Ethan

indeed, you found the same thing on January 2018: In New York City, on well rotted hardwood.

The croziers are more probably present and the IKi reaction is faintly red, you can easily pretreat with KOH and will get a clear blue.

Zotto
Ethan Crenson, 12-12-2019 14:11
Re : Trichopeziza subsulphurea ?
Yes, I guess I did find that before. I forgot.  Thank you for the confirmation.