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26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

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Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

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Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

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Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

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Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

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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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