29-05-2026 15:35
daniel FERREBonjour à tous,Je voudrais votre aide pour cette
28-05-2026 16:15
James MitchellHello,Does anyone have the original publication of
28-05-2026 11:06
Thomas Læssøehttps://svampe.databasen.org/observations/10596750
23-05-2026 11:44
Charles Grapinet
Hello, I am having trouble identifying this copro
25-05-2026 16:44
François BartholomeeusenHi forum members,During an excursion organised by
26-05-2026 21:25
Dirk GerstnerHello everyone, I'm completely stumped by this li
26-05-2026 22:44
Ethan CrensonHi all, I think I have Incrucipulum capitatum her
22-05-2026 14:44
Lothar Krieglsteiner
in unripe condition citrine yellow, then soon fadi
25-05-2026 16:35
Bernard CLESSE
Bonjour à toutes et tous,J'ai trouvé récemment,
22-05-2026 13:29
Gernot FriebesHi,I am curious to hear your opinion on this mater
Calycina citrina vs. confluens, ecology
Viktorie Halasu,
15-11-2021 23:56
Hello 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
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
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?
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
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.
