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18-07-2019 23:09

jean claude chasle

Bonsoir,Ceci est ma première demande sur le forum

19-07-2019 12:34

Filip Filip Fuljer Filip Filip Fuljer

Hi everyone,i found 2 days ago some species on old

19-07-2019 11:15

Katarina Pastircakova

Hello, anybody has this article?Morelet M. 1992. O

20-05-2019 07:38

Ron Bronckers

Hi everybody,Can anybody provide me with a copy of

17-07-2019 18:10

Jac Gelderblom

Hello On culms of Typha I found a small mollisia

17-07-2019 21:35

Joop van der Lee

I am looking for the following documentation.Richa

10-07-2019 17:53

Andgelo Mombert

Bonjour, Fructifications érumpantes atteignant 4

17-07-2019 15:12

Thomas Læssøe

Has anyone Remler or the part that contains Belono

14-07-2019 10:38

Markus Wilhelm

Bonjour, je visite récente le forêt tropicale d

14-07-2019 19:14

Rubén Martínez-Gil Rubén Martínez-Gil

Boudier in 1917 describes Lamprospora lutziana and

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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;-)

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.

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!