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08-12-2022 08:56

Stephen Mifsud Stephen Mifsud

Hi, I found an interesting ascomycete on the skin

08-12-2022 09:10

Stephen Mifsud Stephen Mifsud

Is there a specific Penicllium species like this g

02-12-2022 16:49

Thorben Hülsewig

Hi there,i'm looking for following Literature:Gibe

18-10-2022 01:37

Zuidland Peter

I need help with this one please.Vast numbers of t

07-12-2022 20:44

Bernard Declercq Bernard Declercq

Hello,hereby another problematic coelomycete, this

03-12-2022 16:11

Bernard Declercq Bernard Declercq

Hi there,Collected in Belgium on twigs of Cytisus

07-12-2022 11:10


Bonjour, récolte réalisée sur bois de feuillu

06-12-2022 23:07

Mario Filippa

Hello,I think I have found Allophylaria nervicola

13-09-2013 21:09

Ralph Vandiest Ralph Vandiest

Hello, Does anybody can give me a key of the genu

05-12-2022 10:43

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Un ami m'a envoyé ces p

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Calycina on Betula leaves
Juuso Äikäs, 25-09-2022 14:43
I deleted my previous misleading post and inspected the sample more. Apparently I had managed to destroy the VBs from the preparations, and some of the apos were immature, which made things a bit confusing.

Asci with croziers, IKI+(bb). Paraphyses cylindrical, with a long VB. I looked at a whole, upturned apo and there were indeed some very short hairs to be found, also with VBs. The spores measure 9.6 - 14.6 × 2.7 - 3.1 µm.

So I'm now pretty sure this is a Calycina. Could Calycina populina fit? Does it grow also on Betula leaves?
  • message #73930
  • message #73930
Stip Helleman, 25-09-2022 15:08
Stip Helleman
Re : Calycina on Betula leaves
Dear Juuso,

To my  idea it is a Calycellina.

Look in old article Lowen and Dumont, i am at carwash


Hans-Otto Baral, 25-09-2022 20:21
Hans-Otto Baral
Re : Calycina on Betula leaves
Yes, Calycina populina is a good idea, C. rubescens would be another. The delimitation appears to me not really sharp.
Juuso Äikäs, 25-09-2022 20:23
Re : Calycina on Betula leaves
Hi, thanks for the opinion and tip. I found the abstract for Taxonomy and Nomenclature in the Genus Calycellina (Hyaloscyphaceae), and there was a Calycellina populina mentioned there. If this is what you mean, it apparently is a synonym of Calycina populina. Index fungorum and Mycobank apparently disagree on what is the current name...
Hans-Otto Baral, 25-09-2022 20:25
Hans-Otto Baral
Re : Calycina on Betula leaves
Yes, this was all earlier Calycellina, but that was apparently based on the belief that leaves as substrate have Calycellinas rather than Calycinas. DNA showed that populina is a Calycina.
Juuso Äikäs, 25-09-2022 20:28
Re : Calycina on Betula leaves
Ah ok. Of these species, Calycellina populina is the only one included in the local species list, but I'll have to think which one to label this as :).