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24-03-2026 19:59

William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

24-03-2026 21:37

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

24-03-2026 21:07

Ethan Crenson

Hello all, A friend collected this asco in a wood

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

24-03-2026 11:58

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, recolectado en c

23-03-2026 13:24

Paul Cannon

Could anyone provide me with a pdf of Auerswald's

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

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Reddish-brown waxy cup
Ethan Crenson, 10-12-2021 19:06
Hello all,

I could use some guidance on this collection from about 2 weeks ago.  On well rotted hardwood, dark reddish-brown waxy cups, 1mm or smaller.

Asci IKI-, 8-spored. They appear bitunicate in iodine, 29.5-36 x 5-5.5µm.

Spores ellipsoid, hyaline 4-4.8 x 2.3-2.6µm, biguttulate. 

I don't have much else to go on. Does anyone have some idea?

Thanks,

Ethan
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Hans-Otto Baral, 10-12-2021 20:29
Hans-Otto Baral
Re : Reddish-brown waxy cup
This is not bitunicate, many Helotiales have it, usually an apical ring is in this thickening but here not.

The ectal excipulum should be clarified and then KOH be tested if a red-brown dya extrudes (ionomidotic).
Ethan Crenson, 10-12-2021 22:21
Re : Reddish-brown waxy cup
Thank you Zotto.  No ionomidotic reaction in 10% KOH.  At the very most there was perhaps a faint yellow wash.  Here are photos of the excipulum.
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Hans-Otto Baral, 11-12-2021 10:14
Hans-Otto Baral
Re : Reddish-brown waxy cup
Hmm, there are short smooth hairs, but a Hyaloscyphaceae I do not consider. Might be an American species? But what genus? The excipulum seems a short-celled somewhat irregular texture, not angularis, not prismatica.