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09-05-2016 11:59

François Bartholomeeusen

Dear forum,I found a solitary fruiting body on a s

09-05-2016 09:44

Elisabeth Stöckli

Bonjour, Trouvé au sol, sur bois mort et décort

09-05-2016 20:05

ACAR ismail ACAR ismail

Hi all under populus sp. fruiting body up to 16 c

09-05-2016 19:30

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09-05-2016 00:08

Alain BRISSARD

Bonsoir à tous Ces apothécies (cf. les clichés

09-05-2016 09:05

Castillo Joseba Castillo Joseba

pequeños discos negros En madera de encina (Quer

05-05-2016 22:36

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,this ascomycete grew in a city in Czechia, o

07-05-2016 23:53

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Que pensez-vous de cet Anthracobia

08-05-2016 17:22

Gernot Friebes

Hi,two days ago I collected this Peziza which I as

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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.