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30-03-2021 15:19

Calycina
Stefan Jakobsson

In December I found something Calycina-like on har

31-03-2021 10:52

Hyaloscyphaceae representative on Quercus wood
Alex Akulov Alex Akulov

Dear friendsCan you help me to identify a small di

29-03-2021 22:17

Tympanis (?) on Picea abies
DirkW DirkW

Salut a tous, who can help with this find on youn

24-03-2021 19:04

Black & hairy... Acanthostigmella ?
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur bois mort décortiqué de feuillu, e

30-03-2021 08:11

Literature request
James Mitchell

Hello,I am having a hard time finding a scan of Ra

29-03-2021 18:11

anamorph of a Phaeosphaeria?
François Bartholomeeusen

Hi forum-members,On the bank of a fen, on a reed (

30-03-2021 08:34

Podospora excentrica
Joop van der Lee Joop van der Lee

Found on hare dung.I finally managed to visualize

29-03-2021 17:46

Sporormiella minutisperma
Joop van der Lee Joop van der Lee

Found on horse dung.Perithecia: 225-262 um in diam

27-03-2021 19:25

Valsa on Amelanchier
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte attenante d'Amelanchie

28-03-2021 16:20

"ASCO" with long neck?
Przemyslaw Drzewiecki

Hi,03.07.2020; Hardwood in a significant amount of

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Calycina
Stefan Jakobsson, 30-03-2021 15:19
In December I found something Calycina-like on hard wood of thin branches of a standing decorticated Juniperus communis. I brought it home but could not find a conclusive name for the specimen. Yesterday I found the twig I brought home in midst melting snow. The apothecia are still fresh looking and the only difference seems to be that many spores are now germinating.

Apothecia sessile, 0.5-2 mm diameter. The spores are 10.4 - 13.1 × 4.0 - 4.8, at times with a central septum. I did not not observe clear croziers on asci. The rest in the photos. Any idea what this could be? Southern Finland.

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Hans-Otto Baral, 30-03-2021 18:25
Hans-Otto Baral
Re : Calycina
I am unable to give a hint. The upper cell of the paraphyses is not alive on the photo. Verifying absence of croziers would be crucial. The spores look just as in C. citrina.
Stefan Jakobsson, 31-03-2021 13:51
Re : Calycina
In my mind almost all paraphyses look the same, with small yellowish guttules. In just a couple of cases I observed elongated VBs in the paraphyses. I still have not seen a single clear crozier so I would say it is simple septate.
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Hans-Otto Baral, 31-03-2021 14:58
Hans-Otto Baral
Re : Calycina
This is good, one clear VB on the left of the pic. I see croziers, there are clearly two septa like a V, of course it depends on the view , then every crozier may look simple-septate.

So I have no other idea than C. citrina, which would be quite unusual in spring.
Stefan Jakobsson, 31-03-2021 15:35
Re : Calycina
Thank you! I did not know coniferous wood is a possible substrate.
Hans-Otto Baral, 31-03-2021 15:37
Hans-Otto Baral
Re : Calycina
You are right. I have only one sample on conifer (Picea), but many dozens on angiosperms. And the growth on standing branch is unusual too.