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29-04-2020 19:47

Andgelo Mombert Andgelo Mombert

Bonjour, Je ne parviens pas à identifier ce joli

11-04-2020 19:34

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur brindille morte d'Acer opalus en sit

14-05-2020 09:22

Castillo Joseba Castillo Joseba

Me mandan esta muestra en seco de Galicia,  recol

13-05-2020 11:16

Valencia Lopez Francisco Javier

Hola amig@sHe recolectado estos discomicetes sp en

14-05-2020 12:10

Gao Hanxing

Hello anybody has this article? T. Kobayashi, K.

13-05-2020 19:45

Mirek Gryc

Hello allSporocarps strongly overripe so I do not

13-05-2020 15:12

Edvin Johannesen Edvin Johannesen

Hei! This was collected on a dead, but standing P

12-05-2020 13:21

Fedorenko Vassiliy Fedorenko Vassiliy

Can anyone help me with with the following articl

11-05-2020 20:43

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, I would like to consult this recent find fr

12-05-2020 20:57

Louis DENY

Bonsoir forum,trouvé au bord d'un ruisseau, sur t

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Graddonidiscus?
Stefan Jakobsson, 10-05-2020 23:27
Hello,

For once the path through the main key of Raitviir (2004) was short: two steps to Graddonidiscus and in the genus key one step to G. vandae. Then the problems start.


This fungus was growing on an old leaf of Vaccinium myrtillus(?) attached to a dropping of elk (Alces alces) in a boggy habitat, just a few minute scattered apos. Finland. Spores 4.7 - 5.6 × 1.4 - 1.9 µm; asci approx. 25 x 3-4; paraphyses lanceolate, about 45 x 5; ectal excipulum textura prismatica.


I would appreciate any help with this.


Stefan

  • message #63125
  • message #63125
Charles Aron, 11-05-2020 09:41
Charles Aron
Re : Graddonidiscus?

Hi Stefan,


To me this looks like Lachnum rhytismatis with its crystal-capped hairs combined with the substrate. I remember finding quite frquent ascomata on fallen leaves of Vaccinium myrtillus.


Best wishes,


Charles.

Hans-Otto Baral, 11-05-2020 09:54
Hans-Otto Baral
Re : Graddonidiscus?
Yes, I agree. But there exist different species. On Vaccinium Velenovsky described Lachnum microsporum, so this would be the option here. But there is not  molecular study with enough sequences to clarify how many species might exist and how host-specific they are. In any case, the only good morphological character to separate these microspecies seems th be the ascus base (with or without croziers). Available data suggest, however, that on Vaccinium both cases occur....

Zotto
Stefan Jakobsson, 11-05-2020 10:07
Re : Graddonidiscus?
Yes, of course you are right. Too late to think clearly.

Thanks,

Stefan