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Mot de passe perdu? S'inscrire

22-04-2019 20:12

Riet van Oosten Riet van Oosten

Hello, Just a try ... Found by Laurens van der L

22-04-2019 11:28

Castillo Joseba Castillo Joseba

Galicia,  recolectada en Osmunda regalisA ver si

22-04-2019 19:04

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, April 2019

20-04-2019 01:02

Valencia Lopez Francisco Javier

Hola a todos/asAdjunto fotos de unas supuestas Tri

21-04-2019 21:40

Joop van der Lee

Found on cow dung.Measurements of the perithecia a

21-04-2019 12:06

Castillo Joseba Castillo Joseba

Me mandan el material desde Galicia,  recolectado

20-04-2019 10:47

Castillo Joseba Castillo Joseba

me envian esta muestra recolectada en madera de eu

12-04-2019 14:11

Michel Hairaud Michel Hairaud

Bonjour, Voici une Helotiale manifestement liée

20-04-2019 05:16

Roland Labbé

Bonjour ! Voici un anamorphe inconnu de nous, Sp

18-04-2019 15:25

Castillo Joseba Castillo Joseba

Especimen  con apoterios en forma de disco de col

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Unknown Preussia
Joop van der Lee, 13-03-2019 17:34
Found on deer dung.

Pseudothecia: globose.

Asci: 8-spored; 95-121.5x9.6-11.8 um with a very long stalk.

Spores: Polyseriate; transversal to oblique septa; 20.6-22.4x2.6-3.9 um; no germ slits observed.

Paraphyses: 1.9-2.0 um; septated
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Norbert Heine, 13-03-2019 18:42
Norbert Heine
Re : Unknown Preussia
Hello Joop,

it looks much like Preussia terricola, but therefore your measurements seems not correct, they are too small!

Same problem I've seen in your question to Coprotus spec. Look here.


Maybe Coprotus trichosurus, but your measurements are also much too small.

Please check your details!

Regards, Norbert
Joop van der Lee, 14-03-2019 20:40
Re : Unknown Preussia
Hello Norbert,

To be certain I checked the calibration of my camera with the microscope and it appeared to be off. So thanks for the information that measurements were incorrect.
So here is the new information about the species in my opinion it is P. funiculata mainly because of the obliquely septated spore cells and the lack of hairs as with P. terricola.

Documentation used: Studies of coprophilous ascomycetes VII. Preussia
R.F. Cain Can. J. Bot. 39 (1961) 1636-1638

Ascocarps: 378 um

Asci: 8-spored; 110.8-172.5x16.0-19.4 um with a very long stalk.

Spores: Polyseriate; 4-celled; 29.7-34.2x5.0-6.1 um; obliquely septated; deeply constricted.

Paraphyses: septated with cilindrical and swollen cells.
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Norbert Heine, 14-03-2019 20:49
Norbert Heine
Re : Unknown Preussia
I agree with Preussia funiculata, Joop!

Now the measurements seems to be right;-)

Norbert
Joop van der Lee, 14-03-2019 22:08
Re : Unknown Preussia
Thanks for the advice about the measurements but I  am not sure about the Coprotus.

Joop
Michel Delpont, 15-03-2019 08:33
Michel Delpont
Re : Unknown Preussia
Hello Joop.

Maybe your measuring micrometer is a little low in the data, you should try recalibrating it!

Michel.