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17-01-2026 19:35

Cosmospora aurantiicola: Gibt es dazu Literatur ?
Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

15-01-2026 15:55

pyrenomycete on Quercus
Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

16-01-2026 00:45

Hyphodiscus (?) on hardwood, hemiamyloid, staining reddish-orange
Ethan Crenson

Hi all, On decorticated hardwood from a New York

18-01-2026 12:24

Anamorph on an olive tree
Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

17-01-2026 10:41

Pulvinula
Blasco Rafael Blasco Rafael

Hola, he descubierto que he creado una Pulvinula t

08-12-2025 17:37

possibly related to Melanomma - on Abies
Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-01-2026 11:20

Una para ID
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2026 20:00

Lichenicolous fungus on Protoparmeliopsis muralis
Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Chlorociboria glauca on indet. decorticate hardwood log - 303627368
Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

15-01-2026 10:35

Hyphomycete ?
Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

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Dennisodiscus iridis?
Louis DENY, 09-05-2020 21:03
Bonjour.

Pas de macro, désolé. Petit (diametre max de 1mm) disque mollisoïde, sur tige de juncus effusus de l'an dernier, au bord d'un petit ruisseau. Spores séptées 4 fois (déjà dans l'asque) 37X2.5 µ, asques J+, apparemment 4 spores par asque. L=135µ, avec crochet.
En suivant la clé de Gminder j'arrive à Mollisia iridis.


1 Pouvez vous me confirmer si cette identification est correcte
2 j'ai trouvé différents noms de famille : Hemimollisia, Belonopsis, Dennisodiscus. s'agit-il bien de la même chose? Quel est celui qui prévaut aujourd'hui?
3 qu'est ce qui caractérise les Dennisiodiscus?


Merci pour votre aide

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Hans-Otto Baral, 09-05-2020 22:35
Hans-Otto Baral
Re : Dennisodiscus iridis?
Cher Louis

yes, I think this is D. iridis. Important is that the living paraphyses do not contain long refractive vacuoles as Mollisia does. A character is also that the subiculum and medulla react blue in IKI, though not very striking and perhaps not always.

Hemimollisia was an idea of mine, a provisional new genus. Later I discovered that Dennisiodiscus could be the genus to place this species. But strong evidence is still lacking, especially a sequence.

The family is Ploettnerulaceae, where also Pyrenopeziza belongs, not Mollisiaceae.

Zotto
Louis DENY, 09-05-2020 22:45
Re : Dennisodiscus iridis?
Merci!
Hans-Otto Baral, 10-05-2020 10:36
Hans-Otto Baral
Re : Dennisodiscus iridis?
Since I am planning to include this species, for which I had studies Le Gal's type, in my Dennisiodiscus paper, it may well be that I give a list of all verified records. Then it would be nice to mention also yours, with some data like location and when you collected it.
Louis DENY, 10-05-2020 13:09
Re : Dennisodiscus iridis?
Zotto,  

Datas  are:

Found on 08 may 2020 in Evette-Salbert (France).
DD: 47,6605560, 6,7905550
Hans-Otto Baral, 10-05-2020 13:15
Hans-Otto Baral
Re : Dennisodiscus iridis?
Thanks!