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01-01-2026 18:35

Spooren Marco Spooren Marco

Original loamy soil aside a artificial lake.The co

31-12-2025 19:27

Spooren Marco Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

30-12-2025 16:44

Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Josep Torres Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

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unknown pyrenomycet 1
Gernot Friebes, 29-03-2009 15:10
Hello forum,

it's my first post here and I'm starting with two pyrenomycetes. I was not able to determine them with my literature.

Yesterday I found this one. Spores: 26-27 x 9-10 µm, are brown, two-celled and one half is smaller than the other. It grew on old wood of a deciduous tree.

Best wishes,

Gernot Friebes
  • message #7264
Gernot Friebes, 29-03-2009 15:12
Re:unknown pyrenomycet 1
spores


  • message #7265
Jacques Fournier, 29-03-2009 15:25
Jacques Fournier
Re:unknown pyrenomycet 1
Hi Gernot,
your photos of small conical ascomata and unequally two-celled ascospores remind me Kirschsteiniothelia aethiops. You should first check if asci are bitunicate and hamathecium composed of cellular (septate) filiform elements.
If yes, K. aethiops is characterized by obclavate asci (broader at base then at apex) and a conspicuous sheath around ascospores. Ascospores are verruculose, but this is not diagnostic.
Please come back with good photos af asci and spores!
Jacques
Hans-Otto Baral, 29-03-2009 15:41
Hans-Otto Baral
Re:unknown pyrenomycet 1
It should be added that the species was earlier named Astrosphaeriella applanata, e.g. in Dennis 1978

Zotto
Gernot Friebes, 29-03-2009 18:03
Re:unknown pyrenomycet 1
Hallo Jacques and Zotto,

thank you for your answers!

Here are new fotos of the pyrenomycet, I think they fit quite well with the description of Kirschsteiniothella aethiops except for the spores which don't have a sheath.

Best wishes,

Gernot
  • message #7276
Jacques Fournier, 29-03-2009 18:23
Jacques Fournier
Re:unknown pyrenomycet 1
the sheath can be observed on released spores only, it is quite conspicuous in water on fresh material. Otherwise all the rest is OK.
Jacques
Gernot Friebes, 29-03-2009 19:08
Re:unknown pyrenomycet 1
you are right, there really is a sheath.

Best wishes,

Gernot
  • message #7283