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13-12-2020 21:02

William de Jong

Hi everyone,I found something which seems like Pil

13-12-2020 08:29

Garcia Susana

Hola Encontré este hongo en una rama caida y de

13-12-2020 12:15

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia,  recolecta

12-12-2020 22:49

carl van den broeck carl van den broeck

HelloToday I found very small round white fungi be

11-12-2020 19:28

Thorben Hülsewig

Hi there, 2 months ago I discovered these small w

11-12-2020 14:59

Thomas Læssøe

In addition very small-spored (heterosporous) and

09-12-2020 23:42

Unai Fernandes

Hi everybody! I collected this perithecial fungus

12-12-2020 16:14

Thomas Læssøe

https://svampe.databasen.org/observations/10145540

12-12-2020 12:30

Joop van der Lee Joop van der Lee

Found on cow dung.Apothecia: white cylindrical at

12-12-2020 07:22

SERGE DEFAYS

Bonjour,J'ai trouvé un Polycephalomyces ...Un mem

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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