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09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

08-07-2020 19:01

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je ne remets plus la main sur mon tiré-à

08-07-2020 20:29

Juuso Äikäs

These were growing on a dead grass stalk in a fore

08-07-2020 16:47

Chris Yeates Chris Yeates

Bonjour tous While searching for the downy mildew

08-07-2020 18:21

Castillo Joseba Castillo Joseba

me mandan el material seco recolectado en mdera si

08-07-2020 10:59

Joanne Taylor

Hi there,Does anyone have a copy of the following

07-07-2020 21:07

Lieve Deceuninck Lieve Deceuninck

Dear members of this forumCould this find be Cheil

08-07-2020 16:41

Thomas Læssøe

Suggestions on this one would be very welcomesee:

06-07-2020 17:11

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

02-04-2007 01:16

Patrice TANCHAUD

Bonsoir, Si on prend "Nordic Macromycètes" (tom

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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.