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05-06-2020 06:41

Jérôme MAFFERT

Bonjour, il semble bien que Tuber aestivum Vitt. s

06-06-2020 23:06

Garcia Susana

Hola, Estos apotecios crecian sobre un tallo de

04-06-2020 18:28

Malcolm  Greaves Malcolm Greaves

HelloCan someone help with this long necked flask

05-06-2020 13:53

Peter Thompson

Hello Everyone,I would be interested in your opini

06-06-2020 17:17

Robin Pétermann

J'ai également trouvé ce Lachnum sur Filipendula

06-06-2020 20:25

Juuso Äikäs

I know next to nothing about these kinds of fungi

06-06-2020 19:03

Robin Isaksson Robin Isaksson

Found this mycogaena on populus on smooth twigs in

06-06-2020 16:48

Robin Pétermann

Bonjour,j'ai trouvé ceci sur tige morte de Filipe

06-06-2020 07:19

Juuso Äikäs

These were growing on a dead, fallen stem of Filip

05-06-2020 19:29

Mirek Gryc

Hi! I am convinced that I have already seen these

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Trichodelitschia bisporula - Pseudothecium and it's ostiolar neck
Joop van der Lee, 22-05-2020 12:15
Pseudothecia are deeply emmersed with only the neck and top of the pseudothecia visible, for a total view one has to carefully dig them out of the dung.
At fist the body is conical (190-259x146-190 um) with a stunted neck and a top covered with long dark brown upwards growing setae (photo-1 & 2). The upper part of the body is mostly covered with small, dark brown, buckled setae.
Eventhough we cannot see them because the body of the pseudothecia is emmersed, setae also occur on the body itself. (photo-3).
When the body becomes bulbous it measures (305-385x250-305 um) the mature neck transforms into a diabolo like structure forcing the setea to grow sideways (photo-4).
In 2D the top of the cone looks like an isosceles trapezium with the long basis on top measuring 88-102 um forming, the short basis measures (82-86 um), the bottom will have the opposite shape with the same measurements. Total length of the neck is 60-63 um (photo-5), the neck in between measures 20-23x82-86 um.
On the plateau uniseptated hyphae will arise (27-28.5x3.5-3.75 um) and short setae (30-40x2.5-3.5 um) will form a collar just below the top accompanied by remaining long setae. (photo-6)

When observing (photo-7) we are looking at a visual illusion because of the angle of view. The plateau is not spherical but flat surrounded by a ridge. (photo-8 & 9). The diameter for the plateau of photo-9 = 88.6 um.
Also bald pseudothecium have been seen with a few setae left on the body. (photo 10 & 11)


Note:
von Niessl already observed the collar of short setae in 1875 (D. moravica)


Joop

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