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17-09-2025 19:43

Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

17-09-2025 16:14

Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

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Ciboria on Betula catkin
Juuso Äikäs, 14-01-2021 17:39
Last April I found some quite small Ciboria fruitbodies growing from an old Betula catkin. 

On Betula there are at least two species, C. betulae and C. betulicola. The spore size would fit within the lower range of the former one. About the latter one I haven't found much info. 

The spores measure 9.4 - 10.9 × 4.1 - 5.2 microns. Unfortunately I didn't check the sample in IKI/MLZ or check for croziers. Is it still possible to say which one this is?
  • message #67075
  • message #67075
Hans-Otto Baral, 14-01-2021 18:13
Hans-Otto Baral
Re : Ciboria on Betula catkin
Quite small means less than 2-3 mm?

The one well-living spore looks to me like binucleate, though I am not sure.

In Fungi Canadenses (see my folder) C. betulicola is 2-8(-10) mm diam. with long stipe, and spores uninucleate.

C. betulae = seminicola has rough spores that are more slender.

So I have no idea.
Juuso Äikäs, 14-01-2021 18:42
Re : Ciboria on Betula catkin
The diameter of the apos was maybe max. 3 mm or so. I attached a pic of the entire catkin to give a better impression of the size. Here's also a couple extra micro pics. I'm not sure, but maybe I have accidentally photographed a crozier?
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Juuso Äikäs, 14-01-2021 18:44
Re : Ciboria on Betula catkin
Crozier?
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Juuso Äikäs, 14-01-2021 18:45
Re : Ciboria on Betula catkin
Spore.
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Hans-Otto Baral, 14-01-2021 20:39
Hans-Otto Baral
Re : Ciboria on Betula catkin
Yes, croziers and 2 nuclei. This would fit C. coryli. How certain is Betula?
Juuso Äikäs, 14-01-2021 21:04
Re : Ciboria on Betula catkin
Ah, ok! If I recall correctly, Betula was the only deciduous tree I saw in the near vicinity. But I can't say I'm 100 % sure. The place would be maybe a bit strange for Corylus. I think it was acidic and fairly nutrient-poor.

But I'll have to keep this in mind and later check the place again. Thanks!