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03-02-2026 20:44

Zetti Mario

When I first saw this white mould on an Agaricus s

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

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Apical rings of Trichodelitschia bisporula
Joop van der Lee, 19-05-2020 09:59
Joop van der LeeWhen we are investigating characters of species under a light through microscope we do observe that in a 2D picture.
So we have to think in 3D but that is not always possible because our mindset cannot cope with the optical illusion we are looking at.
Accidentally I did find out that we can create a 3D picture by changing the focal distance from the lens to the object using a Plane Objective 100x/1.25 (photo 1 & 2). Probably by stacking photo's you will create the same effect.


The ring is elastic and the distance when the apical system is not fully developed is as follows: Diameter of the outer circular ring is 0,9 um; total diameter is 4,6 um and inner diameter is 2.8 um. Photo-3 is a ring clearly visible with a spore ready to enter.


Photo 4 the ring is connected to an ampty inner wall, photo 5 is the same situation but inside a still present outer wall.


Photo 6 shows the apical ring in the end phase with spore clicked inside and the outer wall still present. 
Photo 7 & 8 show spores inside the ring and outer wall gone.

The ring itself is more oval than it is circular. (photo 9)

Kind regards,

Joop

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