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09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

10-06-2026 13:41

François Freléchoux François Freléchoux

Bonjour à nouveau, Voici une trouvaille d'hier.

10-06-2026 11:53

Steve Clements

Bonjour, This disco is abundant on dead stems of

10-06-2026 12:54

Steve Clements

Bonjour encore, Pouvez-vous m'aider, s'il vous pl

10-06-2026 10:45

François Freléchoux François Freléchoux

Bonjour à nouveau, Encore une détermination qui

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

10-06-2026 09:24

François Freléchoux François Freléchoux

Bonjour, J'imagine que cette détermination ne do

08-06-2026 17:00

François Bartholomeeusen

Good day everyone, On June 5 2026, I collected de

07-06-2026 18:18

Mario Schulz

Hello everyone, i found on 31.5 the following Mol

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

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A giant Roseodiscus formosus?
François Bartholomeeusen, 09-05-2016 11:59
Dear forum,

I found a solitary fruiting body on a stump of Alnus covered with moss on a dike in a swamp of Alder.
FRB: 10 – 15 mm, turbinate to cushionlike with a short stalk covered with white hyphen, pink-ochre with lilac tint
Spores: elliptical, hyaline with a few drops on each pole : 8,99-14,58 x 4,09-5,64 µm;
Q= 2.51
Asci: 62,82-94,06 x 4,19-12,39 µm in melzer apex blue
Paraphyses: filiform, sometimes forked: 81,72-98,15 x 2,65-4,96 µm
Outer excipulum: with curved, septated hyphen
Inner excipulum: textura intricata

The FRB looks like a giant Roseodiscus formosus! Can someone help me?

Thanks in advance,
François Bartholomeeusen
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Hans-Otto Baral, 09-05-2016 12:18
Hans-Otto Baral
Re : A giant Roseodiscus formosus?
Dear Francois
look at the contents of the living paraphyses of your photo, these many droplets are very helpful and exclude a Roseodiscus. What you have is Cudoniella tenuispora, a bit too yellow but otherwise seems to me perfect.
Zotto
François Bartholomeeusen, 09-05-2016 21:07
Re : A giant Roseodiscus formosus?
Hello Zotto,

Thank you very much, I never would have considered Cudoniella...in my eyes it's still a giant!

François
Hans-Otto Baral, 10-05-2016 09:15
Hans-Otto Baral
Re : A giant Roseodiscus formosus?
1-1.5 cm is not untypical for this species. And it never grows in water.