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20-10-2025 09:36

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for the following article:Bene

19-10-2025 18:58

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Il y a un peu plus de de

19-10-2025 14:10

Camille Mertens

Bonjour à tous.Asco stipité 1mm de texture appar

17-10-2025 18:45

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025.

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

15-10-2025 16:39

Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

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tiny white apothecia associated with Cephaloziella
Jan Eckstein, 06-02-2023 17:38
Dear forum,

can someone help with this nice little discomycete?

- apothecia white, to 0.4 mm in diameter without conspicuous margin,

- paraphyses strongly hooked and sometimes also curled
- asci K/I-, but ascus content turning orange
- spores ellipsoid, 10-11 x 5-7 µm, hyaline, smooth, filled with many small LB
- host Cephaloziella hampeana: hyphae inside rhizoids growing upwards to the base of the rhizoid cell and from there in adjacent stem cells

- habitat: forest soil (with loess), ecology similar to Mniaecia jungermanniae

With best wishes

Jan
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Lothar Krieglsteiner, 07-02-2023 00:38
Lothar Krieglsteiner
Re : tiny white apothecia associated with Cephaloziella
Hello Jan,
you could compare with Mniaecia gloeocapsae.
Yours, Lothar
Jan Eckstein, 07-02-2023 08:05
Re : tiny white apothecia associated with Cephaloziella
It seems to be Mniaecia albida = M. gloeocapsae indeed.

Thank you very much, Lothar!
Lothar Krieglsteiner, 07-02-2023 09:52
Lothar Krieglsteiner
Re : tiny white apothecia associated with Cephaloziella
I never heard of M. albida. In Index of Fungi both species are accepted. I know also M. nivea with larger spores.
Yours, Lothar
Jan Eckstein, 07-02-2023 20:20
Re : tiny white apothecia associated with Cephaloziella
Dear Lothar,

in the Orbiliomycetes Monograph (Baral et al. 2020) I found the following sentence (page 1661):'Actually, reexamination of the type material by J.P. Priou (IVV: 22.X.1866) revealed
it [Mniaecia albida (P. & H. Crouan) Priou & Baral, comb. nov. — MB 814586] to be an earlier synonym of Mniaecia gloeocapsae (Boud.) Van Vooren as described and figured by Boudier (1904–10: 262, pl. 454).

With best wishes

Jan
Hans-Otto Baral, 07-02-2023 21:08
Hans-Otto Baral
Re : tiny white apothecia associated with Cephaloziella
Yes, Mniaecia nivea (Boudier pl. 456) has the large spores (around 20-25 x 11-14) and M. albida = gloeocapsae (Boudier pl. 454) the small spores (around 8-12 x 4-6).

But there is an intermediate form, M. cf. gemmata, with spores 12-19 x 6.5-9.5, and spore size is somewhat variable, I never saw 7 µm wide spores in M. albida.

Images of the type of Mniaecia albida are in my folder with the name Mniaecia albida, 22.X.1866.