Accès membres

Mot de passe perdu? S'inscrire

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

« < 1 2 3 4 5 > »
Hypocopra
Joop van der Lee, 02-01-2019 23:34
Joop van der LeeFound on cow dung.

Perithecia: young one 158.6x156.3 um (neck excluded), neck 29x55.1 um (photo-2); mature one 222x241 um (neck excluded), neck 53.5x76.7 um (photo-3).
Ascus: 95.1x11.8 um, 8 spores.
Spores: 14.6-16.3x6.5-7.2 um, uniseriate, longitudinal germ slit over length of spore.


  • message #55724
  • message #55724
  • message #55724
  • message #55724
  • message #55724
  • message #55724
  • message #55724
Norbert Heine, 03-01-2019 23:04
Norbert Heine
Re : Unknown asco
You should search in the genus Hypocopra, Joop.

But I don't know  a species with this sporesize and a full length germ slit.

I also miss a stroma.

A photo of the ascus tip with Melzer's reagent would be useful.

Sincerely, Norbert
Joop van der Lee, 04-01-2019 00:04
Joop van der Lee
Re : Unknown asco
Hello Norbert,

I was also thinking about Hypocopra but also missed a stroma.
I will try to find another species and look for more specifics.

Thanks for the info I will ask David Malloch if he has some more info.

Joop


Joop van der Lee, 04-01-2019 16:54
Joop van der Lee
Re : Unknown asco
Hello Norbert,

David did send me documentation from Cain about Hypocopra, if you do not have it I can send it to you.
I do have a photo from the top of an ascus, is this one sufficient enough or do you need more?
Further investigation of the photos revealed that the germ slit does not run in the full length of the spore but between 8-10 um.

In my opinion if we take Hypocopra into account the measurements of the spores do correspond to H. parvula (species # 20) as indicated in New species of Hypocopra (Xylariaceae)' by J. C. Krug and R. F. Cain. But this species is described by D. Griffiths (1901) in  The North American Sordariaceae Mem. Torre Bot. Club, 11: 1-134 and I do not hold that document.

I also checked the genus Podosordaria but no comparison


Greetings,

Joop
  • message #55754
  • message #55754