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13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

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Mollisia
Zuzana Sochorová (Egertová), 24-07-2022 14:01
Zuzana Sochorová (Egertová)Hello,
yesterday I collected this Mollisia.
Ascospores (10.3)10.9-12.9(13) × 2.4-2.8 (3) µm, Me = 11.7 × 2.6 µm
Q = 3.9-5.2; Qe = 4.5
OCl = 2 (several tiny drops), no septate spores observed neither in asci nor outside them

Asci H+, bb, 75-89 × 5.8- 6.6 µm

Subhymenium built if hyaline hyphae.

Cells of the ectal excipulum brownish up to the margin.

No yellow reaction in KOH, the section only becomes lighter.

Locality: Czech Republic, Moravia, 250 m a.s.l., on thin twigs found in the grassland (only broadleaved trees grow nearby)

Using the key by Andreas, Mollisia melaleuca seems to be the best option - but the spores are a bit slimmer than given in the key, and hymenium is not white...
How would you identify this find?
Thank you, Zuzana
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Zuzana Sochorová (Egertová), 24-07-2022 14:03
Zuzana Sochorová (Egertová)
Re : Mollisia
More photos
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Zuzana Sochorová (Egertová), 24-07-2022 14:04
Zuzana Sochorová (Egertová)
Re : Mollisia
more - the last photo is taken in KOH
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Hans-Otto Baral, 24-07-2022 20:44
Hans-Otto Baral
Re : Mollisia
You have a sequence for this? :-)

Earlier I would have identified this as M. benesuada,e.g. for HB 3936a and numerous pother samples,  but then I learned that M. benesuada is a species growing on bark (Ingo called it also alni-corticis).

Especially Ingo's sequenced samples suggest that this is either M. oblonga or M. nodosa, which can only be differentiated by DNA (or by their anamorph).

M. melaleuca could be a species with an OCI of 0, e.g. IW033 in our melaleuca folder. However, Torsten's M. melaleuca 18.VI.2011 has spores like yours and who knows what it is.
Zuzana Sochorová (Egertová), 24-07-2022 21:52
Zuzana Sochorová (Egertová)
Re : Mollisia
Thank you, Zotto. I felt already in the field that I should better pretend I didn' t see it ???? The key gives OCl = 2 for M. melaleuca. And for M. benesuada is given that brown cells should be located only at the base od apothecium...
I don't have a sequence of this.
Hans-Otto Baral, 24-07-2022 22:08
Hans-Otto Baral
Re : Mollisia
Yes, M. benesuada is rather light-coloured due to pale excipulum.
Zuzana Sochorová (Egertová), 24-07-2022 22:39
Zuzana Sochorová (Egertová)
Re : Mollisia
But I would say that in my sample brown cells are located not only at the base - they reach almost the margin (it should be visible in picture "12 of 15" - the section).
Therefore, I jumped to 25b in the key.
(25a Cells of the ect. exc. only at the apo. base brownish (apo. adhered ± punctiform ) ....... 26
25b Cells of the ect. exc. +/- up to the margin brownish coloured ......................................... 28)
Difficult genus for me...
Hans-Otto Baral, 25-07-2022 09:04
Hans-Otto Baral
Re : Mollisia
Surely yours is not benesuada (alni-corticis). But as far as I know Andreas does not have oblonga and nodosa in his key, I remember Ingo saying that he even thought this to be American species as they have their types there.

Paradidymobotryum oblongum C.J.K. Wang & B. Sutton, Mycologia 76(3): 572 (1984)

On rotten wood of Ulmus americana: New York


Phialocephala nodosa Tanney & B. Douglas, in Tanney, Douglas & Seifert, Mycologia 108(2): 262 (2016)

Holotype DAOM 628553: Isolated from decaying branch of Acer saccharum: New Brunswick