Accès membres

Mot de passe perdu? S'inscrire

24-02-2026 00:21

Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

23-02-2026 11:22

Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

« < 1 2 3 4 5 > »
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
  • message #75111
  • message #75111
  • message #75111
  • message #75111
  • message #75111
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.