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04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

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Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

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Francois Guay Francois Guay

I found this interesting yellowish asco growing on

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Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

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Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

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Elisabeth Stöckli

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02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

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Ciboria cf. caucus
Nina Filippova, 27-04-2015 15:43
Hello dear Forum.

This very early species was found today on catkins of Populus tremula, on road side in mixed coniferous-deciduous forest. It is still snow in the forest, but south slopes are exposed and there was the fungus fruiting.

It goes to C. caucus using Nordic Macromycetes (2000) key, but the spores in my specimen are some larger.

Asci 155 (140-180) x 10.5 (10-11); paraphyses cylindrical, slightly enlarged in upper part, 3-3.8 broad there; spores 11.7 (10.8-12.3) x 6.7 (6.3-7.1), Q=1.74, n=23.
  • message #35436
  • message #35436
  • message #35436
  • message #35436
Hans-Otto Baral, 27-04-2015 15:52
Hans-Otto Baral
Re : Ciboria cf. caucus
Hello Nina

this spore size is fully o.k., see my drawings on Salix.

Those on Corylus and Alnus have smaler spores and are a different species, C. amentacea.

Probably Nordic M. mixes both, also they probably give dimensions of dead spores.

I usually find the species on Salix, while on Populus , the type substrate, it is not often collected.

Zotto
Nina Filippova, 27-04-2015 18:19
Re : Ciboria cf. caucus
Thank you, Zotto!