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26-12-2019 16:29

William Slosse William Slosse

Hello forum, on 19-12-2019 I found on an old dune

26-12-2019 16:05

Stephen Martin Stephen Martin

I was trying to recultivate a species of Talaromyc

25-12-2019 23:16

Stephen Martin Stephen Martin

I am culturing and trying to identify three asperg

26-12-2019 11:34

Marc Detollenaere Marc Detollenaere

Dear forum,   Yesterday I found an tree-like an

20-12-2019 11:33

Bernard CLESSE Bernard CLESSE

Récolte et photos en provenance d'amis espagnols.

24-12-2019 13:10

Maria Plekkenpol

Hello,First of all ofcourse Merry Christmas and a

21-12-2019 18:12

PASCAL DUBOC

Bonsoir récolté ces mini asco de même pas 1mm

19-12-2019 15:35

Edmond POINTE Edmond POINTE

Bonjour à tous,Taxon totalement immergé trouvé

21-12-2019 18:33

PASCAL DUBOC

Re aussi minuscules, mais blanc hirsute, réactio

12-12-2019 18:36

Roland Labbé

Bonjours ! Voici un Trichoderma (Hypocrea) inconn

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Roseadiscus formosus?
William Slosse, 26-12-2019 16:29
William SlosseHello forum,

on 19-12-2019 I found on an old dune at the Belgian coast this tiny rosy species growing between Tortula ruralis.
I thought it might be a Roseodiscus but the parafyses aren't bent and branched at the end.


Apothecia: up to 4mm Ø and smooth
Stalk: up to 15mm long and darkening towards the base (older species)
Asci: J+ (Melzer) with croziers
Spores: Av (19.23-) 16.30 (-14.84) x (10.19-) 8.42 (-7.43); N= 40. Measurements in water. Ellipsoid to fusoid; smooth; hyalien. Mature spores are one-septated
Paraphyses: straight, slender and apically lightly swollen. Septated. Only a few were branched at the base.


Has someone any idea about this species?


Regards,


William

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Hans-Otto Baral, 26-12-2019 16:49
Hans-Otto Baral
Re : Roseadiscus formosus?
Hi

The apical ring type clearly places this fungus in the Sclerotiniaceae.

Did you notice that 4 spores are smaller than the others? It should be Sclerotinia trifoliorum

Zotto
William Slosse, 26-12-2019 18:44
William Slosse
Re : Roseadiscus formosus?
Thx for your help, Zotto.

Peter Püwert, 26-12-2019 19:19
Peter Püwert
Re : Roseadiscus formosus?
Hi, attention should also be paid to black sclerotia.

Greetings Peter.
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William Slosse, 26-12-2019 22:20
William Slosse
Re : Roseadiscus formosus?
Very nice to mention this, Peter.
This species has been reported on the Belgian coast only a seven times during the past 10 years.
It has surely been overlooked all the time.

Regards,
William