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01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

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

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

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Calycina citrina vs. confluens, ecology
Viktorie Halasu, 15-11-2021 23:56
Viktorie HalasuHello forum,

I would like to ask, what is your experience with the ecology of Calycina citrina vs. C. confluens? Do they have any biotop / substrate / wood size preference? I have here a small riparian forest I visit frequently (ash, oak, elm, poplar...) and for several years I keep finding only C. confluens there. So I wonder why not also C. citrina, which is supposed to be at least just as common. Does it prefer bulky beech wood? 

Thank you.
Viktorie
Hans-Otto Baral, 16-11-2021 10:50
Hans-Otto Baral
Re : Calycina citrina vs. confluens, ecology
I have as substrate often Corylus, also often Alnus, rarely Salix, Fagus and Fraxinus. C. citrina is very often on Fagus, also often on Carpinus, but Alnus, Ulmus, Quercus and even conifers occur. Whether riparian forests are preferred by confluens I cannot easily say. But I must admit that the separation of the two species is difficult. Genetically they are different, according to the few available sequences of confluens.
Viktorie Halasu, 16-11-2021 11:04
Viktorie Halasu
Re : Calycina citrina vs. confluens, ecology
Ok, there was a nice rich population on Ulmus branch, I'll do a better micro and separate a piece for sequencing. Free spores 0-1septate, (12,7)14.3-16.7(17.5) x (4)4.5-5(5.5) um, asci H+ IKI+b. 

Another older collection on Tilia had smaller spores,  (10.8)11.9-14.8(15.2) x (3.7) 4.2-4.7(5.1), 0-1septate (free spores). I'm not sure whether to call it confluens too, at that time I forgot to check the septation inside living asci. If I remember correctly, you wrote in another thread something about C. citrina never having spores more than 1s, but confluens 1-3s - did you mean inside asci or free (possibly overmature) spores?
Hans-Otto Baral, 16-11-2021 11:33
Hans-Otto Baral
Re : Calycina citrina vs. confluens, ecology
Septate spores can be both inside and outside the asci, but NEVER inside living asci in this species complex. Overmature spores could help: 1-septate = citrina, 1-3-septate = confluens.

The genetic situation is unclear (March 2021). There are two distinct clades, but which is which?

For Guy's collection and Florian Prell's FP100 docus are available to me. Spore size is similar. Guy uploaded his sequence, it got the number KY462815.
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