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17-05-2022 15:28

Derek Schafer

Kerry Robinson found this stalkless brown discomyc

23-05-2022 15:32

Riet van Oosten Riet van Oosten

Hello, Found 22-05-2022 on fresh leaves of Typha

21-05-2022 17:43

Derek Schafer

Kerry Robinson found this Discomycete on Fraxinus

22-05-2022 12:57

Andrés Valverde Valera Andrés Valverde Valera

Bonjour,Je vous envoie des images de cet ascomycè

22-05-2022 11:39

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia,  recolecta

21-05-2022 12:35

Enrique Rubio Enrique Rubio

Dear friendsDo any of you have this article?Monogr

19-05-2022 22:05

Marcus Yeo

Earlier today I found a minute discomycete growing

20-05-2022 17:43

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte attenante d'Ulmus mino

18-05-2022 09:10

Mirek Gryc

Hello everyoneA few days ago I found a small ascom

06-05-2022 14:38

Laurent Bonneau Laurent Bonneau

Bonjour, j'ai trouvé ces Scutellinia dans le sud

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Disco amarillo on moss
Rubén Martínez-Gil, 27-01-2019 00:41
Rubén Martínez-Gil

Hola a todos.


Subo unas fotos de un asco que hemos encontrado hoy sobre musgos encima de una madera de Boj.


Esporas mayoritariamente con 2 gútulas, verrugosas, de 4-5 x 2,5-3 micras.


Ascas NO amiloides, pleurorrincas.


Paráfisis con muchas VBs.


Excípulo también con abundantes VBs.


En el monte pensé en una especie de Bryoscyphus, pero ahora no sé que puede ser.


¿Podrían ayudarnos?


Gracias


Rubén

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Hans-Otto Baral, 27-01-2019 09:52
Hans-Otto Baral
Re : Disco amarillo on moss
Hi Ruben, where have you been?

This is a very interesting collection. I consider it a Pithyella.

Do you have a photo of a dead ascus apex, unopened and not too immature? I want to know if there is an apical or lateral wall thickening.

I see at the moment only Pithyella apicalis as closest, which is from ceylon and has more roundish spores with stronger warts.

Bryoscyphus may well be a synonym of Pithyella, that needs to be brought out. If you want to contribute to this question, please give this for DNA.

And did you find out the name of the moss? If not, please make some microscopic photos of it.

Zotto
Lothar Krieglsteiner, 27-01-2019 10:26
Lothar Krieglsteiner
Re : Disco amarillo on moss

Hello Ruben,


very nice collection. Before I read Zottos text I was also thinking of Pithyella. Regarding the moss: it would perhaps also be good to have a foto of the moss in the habitat. As far as I understood it grew on a log of Buxus sempervirens (boj)? Is the surrounding area more acid or base-rich?


Best regards, Lothar

Rubén Martínez-Gil, 27-01-2019 10:53
Rubén Martínez-Gil
Re : Disco amarillo on moss

Hola Zotto, Lothar.


¿Qué tal están? Yo he estado un poco ocupado unos meses, pero he leído casi todos los mensajes.


Gracias por sus respuestas.


He mirado y no tengo buena foto de ápice de asca muerta, pero tengo más apotecios, así que miraré uno más para ver si hago unas fotos mejores.


Envío alguna foto de esporas con agua y con cotton, para ver un poco mejor la ornamentación.


Lothar, yo encontré el musgo enrollado en un tronco de Buxus que estaba todavía vertical donde creció, pero ya estaba casi muerto. Lo moví un poco y se rompió por la base. En la base había peritecios parecidos a Rosellinia o no lo sé, que no llegué a mirar. La misma rama tiene Eutryblidiella hysterina y también Unguiculariopsis ravenelii subsp. hamata, entre otros muchos. Yo fui a buscar Unguiculariopsis ravenelii subsp. hamata.


El tronco estaba a la orilla de un río, y el entorno es todo muy calizo, aunque donde lo encontré había bastante materia orgánica en el suelo y humus.


Esta semana voy a consultar a Javier Martínez-Abaigar, un amigo mío de la Universidad de La Rioja a ver si nos puede ayudar con la identificación del musgo.


Rubén

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Rubén Martínez-Gil, 29-01-2019 10:58
Rubén Martínez-Gil
Re : Disco amarillo on moss

Hola a todos.


Zotto, subo alguna foto de ápice de ascas. No sé si es lo que usted busca.


Saludos


Rubén

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Hans-Otto Baral, 29-01-2019 11:12
Hans-Otto Baral
Re : Disco amarillo on moss
Yes, but actually these asci are living or at least contain turgescent vacuoles.
You must kill the asci, e.g., by adding Melzer's or CB (cotton blue in lactophenol).

Some people have difficulties in viewing living elements, but you are not among them :-)
Zotto
Rubén Martínez-Gil, 29-01-2019 22:10
Rubén Martínez-Gil
Re : Disco amarillo on moss

Hola a todos.


La especie del musgo hospedante es Neckera complanata (Hedw.) Huebener.


Zotto, mañana miro al micro otro apotecio con Melzer a ver si se observa alguna diferencia en el ápice ascal.


Saludos


Rubén

Lothar Krieglsteiner, 30-01-2019 09:12
Lothar Krieglsteiner
Re : Disco amarillo on moss

Neckera is what I expexted - for N. complanata (the most common species) I missed the "flagella-branches" (or similar - directly translated to English). It ist a moss that is common also in Germany, but only in base-rich regions (my question ...), mainly on rocks but also on standing trees.


At any case - I will look for your fungus on Neckera in future!


Best regards, Lothar

Rubén Martínez-Gil, 30-01-2019 13:25
Rubén Martínez-Gil
Re : Disco amarillo on moss

Hola Lothar.


A ver si tiene suerte y encuentra algunos apotecios sobre Neckera.


Saludos


Rubén

Rubén Martínez-Gil, 31-01-2019 00:02
Rubén Martínez-Gil
Re : Disco amarillo on moss

Hola Zotto.


Envío unas fotos de ápices de ascas en Melzer.


No sé si llega a verse lo que usted busca.


Saludos


Rubén

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Georges Greiff, 18-01-2022 10:11
Re : Disco amarillo on moss
Hi all,

A correspondent has found what could be the same as this also on Neckera in a humid location in Wales, UK. He is sending it to me so I will provide documentation following this post.

Did you manage to get any further with this collection? Was it sequenced in the end?

Thanks and best wishes,
George
Hans-Otto Baral, 18-01-2022 11:00
Hans-Otto Baral
Re : Disco amarillo on moss
Hi Ruben

I have no further collection seen, my folder contains only yours. (Helotiaceae, Calyptellopsis/Pithyella).

Pithyella apcalis is unsequenced and is from Ceylon (Sri Lanka), perhaps only known from the ~150 years old type.

Pithyella hypnina looks macroscopic very close to yours, perhaps Boudier overlooked the warts?

I am unaware of a single sequence of a Pithyella or Muscicola, except for one by Michel which sequence is 100% a Pilidium/Discohainesia.

So there is no sequence for the rather frequent Pithyella chalaudii (frullaniae) and Muscicola dubia.

Zotto
Georges Greiff, 18-01-2022 11:10
Re : Disco amarillo on moss
Thanks for this info, Zotto.

I will try to collect tissue from the sample for sequencing ITS and LSU. I have already got some of P. chalaudii in the freezer for the same purpose, so perhaps we will be able to get a bit more understanding of where they really belong (if it works).

But I will try to produce good documentation of the living material as well.

There is a lot of suitable habitat (Neckera complanata growing on roots in streams) in my area so it is very possible that it is around here as well. Hopefully I will have some time to search.

Thanks again and I will update in due course,
George
Hans-Otto Baral, 18-01-2022 11:42
Hans-Otto Baral
Re : Disco amarillo on moss
very good plans, good progress!
Georges Greiff, 20-01-2022 16:39
Re : Disco amarillo on moss
Hi both,

Here are some images of the Welsh collection sent to me by M. Sutton.
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Georges Greiff, 20-01-2022 16:43
Re : Disco amarillo on moss
Not as good as your documentation, Reuben, but I think the fungus is the same. The host here is actually Neckera pumila but N. complanata grew on the same tree.

Unfortunately, the microscope I am using does not have as good a resolution as my usual Leitz so the images are grainy.

There was enough material for me to collect apothecia for sequencing.

It is a beautiful fungus (macro by the collector).

All the best,

George
Lothar Krieglsteiner, 20-01-2022 18:15
Lothar Krieglsteiner
Re : Disco amarillo on moss
Yesterday I looked at several places in the Schwäbische Alb where Neckera complanata (and N. crispa) grows, one at a riverside, another ones on calacareous rocks. But no success. The weather there is still quite cold. How ist the situation in Wales? I will try again to find the fungus here on Neckera. Is there a hint how to search it in the field?
Best, Lothar
Georges Greiff, 20-01-2022 18:52
Re : Disco amarillo on moss
Hi Lothar,

Ah, that is a shame. Who knows why these things show themselves when they do? The weather has been quite mild 0-10 Celsius in south England over the last month or so, so I expect the same for south Wales where this was found. I am guessing it is a lot colder on your side.

I am currently sick with covid, but if I recover in the next few days I might try looking in the habitats close to me on the Isle of Wight.

One other thing I noticed about this species is that the apothecia seem to develop from the host stems rather than the leaves. This is very similar to the illustration of P. hypnina by Boudier.

Best wishes,

George
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Viktorie Halasu, 20-01-2022 20:04
Viktorie Halasu
Re : Disco amarillo on moss
Hello,

did anyone study the infectious structures of these fungi? In Octospora-like fungi it is often very distinct which parts of the bryophyte are infected and how. But I don't know whether this character is this important with inoperculates too.  

Viktorie
Georges Greiff, 20-01-2022 20:13
Re : Disco amarillo on moss
Dear Viktorie,

I will try to examine this with host stem and leaf sections.

George


Lothar Krieglsteiner, 20-01-2022 20:26
Lothar Krieglsteiner
Re : Disco amarillo on moss
Hello George,
thank you very much for your response!
So I think I will try when the weather has become warmer here. 
Yours, Lothar
Zuzana Sochorová (Egertová), 20-01-2022 20:46
Zuzana Sochorová (Egertová)
Re : Disco amarillo on moss
Hi Tori,
according to Peter Döbbeler, it's much more difficult to study infection in inoperculate bryophilous ascomycetes than in Pezizales. Some time ago I had asked him whether he could study and illustrate inf.structures for a paper on one of such fungi, and he explained that inf.str. in inoperculate ascos are not so characteristic, so you cannot be sure that the hyphae really belong to a certain species (the moss can be inhabited by several species, although not all of them, of course, produce fruit bodies in the same time).
Zuzka
Rubén Martínez-Gil, 20-01-2022 21:37
Rubén Martínez-Gil
Re : Disco amarillo on moss
Hola a todos.
Vaya George, espero que se recupere pronto.

Yo tengo el material de esta recolecta por si ustedes quieren hacer ADN o cualquier otra prueba. Pueden disponer de él como si fuera de ustedes.

Zuzana, no miré la infección en hojas del hospedante, pero este sábado voy a ir al mismo lugar a ver si por casualidad vuelvo a encontrar algunos apos. No será fácil, pero que no sea por no haberlo intentado.

Salud
Rubén
Georges Greiff, 21-01-2022 10:36
Re : Disco amarillo on moss
Thanks all,

As you say, Zuzana, the hyphae are inconspicuous and also nondescript. I made sections beside the apothecia (on upper parts of the shoot less likely to have many fungi) and saw narrow (±1.5), thin-walled hyaline hyphae on the leaf surfaces. The host stems seemed empty. Also, the hyphae didn't seem to take up the lactophenol cotton blue well, which is ususual. 

Rubén, I would be happy to include your collection in my sequencing batch. Also great to have collections from a broad geographical range. I will e-mail you separately.

All the best,
George