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28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

29-04-2026 08:01

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig attached to small tree of Citrus auran

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

28-04-2026 21:53

William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

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Preussia terricola
Joop van der Lee, 13-03-2019 17:34
Joop van der LeeFound 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
Joop van der Lee
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
Joop van der Lee
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.