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10-12-2021 19:06

Ethan Crenson

Hello all, I could use some guidance on this coll

10-12-2021 20:19

Riet van Oosten Riet van Oosten

Hello, In November 2021 Laurens van der Linde fou

09-12-2021 16:53

Josep Torres Josep Torres

Hola.Unos apotecios fotografiados el pasado doming

06-12-2021 18:08

Enrique Rubio Enrique Rubio

Je suis a la recherche de la description et figure

07-12-2021 15:54

Joop van der Lee Joop van der Lee

Found on horse dung.Susporanggial swelling: ovoidU

07-12-2021 20:53

Bernard Declercq Bernard Declercq

Hi there,I would be pleased  to receive a pdf of

07-12-2021 01:48

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos.Subo unas fotos de un asco que hemos

02-12-2021 18:30

Khomenko Igor Khomenko Igor

Hi, this fall around Ottawa, ON, Canada I found a

06-12-2021 14:11

Camille Mertens

Bonjour à tous.Récolté dans les dunes du Cotent

06-12-2021 09:37

Castillo Joseba Castillo Joseba

Recolectada el pasado sabado, en terrenos  de cul

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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.