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19-07-2018 10:09

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Trouvé sur berge raide

19-07-2018 13:29

Savic Dragisa

I think this is Peziza tenacella, the ornamentatio

19-07-2018 00:11

Thorben Hülsewig

Hi there,today i found on ground this ascomycet th

18-07-2018 18:33

Guillaume Eyssartier

Bonjour à tous, je vous envoie cet étrange asco

15-07-2018 17:56

Riet van Oosten Riet van Oosten

Hello, Found 14-07-2018 on Phragmites australis (

18-07-2018 18:02

Elisabeth Stöckli

Bonjour, Trouvé sur feuilles mortes d'Eriophorum

17-07-2018 21:24

BERNARD CLESSE BERNARD CLESSE

Voici un asco blanc récolté dans un fossé tourb

15-07-2018 15:07

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Je pense avoir trouvé S

15-07-2018 21:06

PASCAL DUBOC

bonsoir, ces petites cupules gélatineuses de moi

17-07-2018 06:14

Juuso Äikäs

I found these yesterday in a moist depression (Sou

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Calicium sp
Garcia Susana, 10-12-2013 16:45
Hi all

Found these apothecia growing on old wood of Quercus.
Size up to 1 mm high.
I have come to define the genre as Calicium, but it is difficult for me to determine the species. I think it can be C.salicinum, but I wish someone confirm or reject my hypothesis.
Thanks in advance, greetings.


Susana (Spain)

  • message #26172
  • message #26172
Alain GARDIENNET, 10-12-2013 17:18
Alain GARDIENNET
Re : Calicium sp
Hi Susana,
No problem or C. salicinum. Nice photos.
Alain
Garcia Susana, 10-12-2013 20:50
Re : Calicium sp
Thanks.
Greetings

Susana
Garcia Susana, 11-12-2013 00:13
Re : Calicium sp
Hello again

Reviewing the notes of this collect I've noticed that there may be two species of Calicium mixed on the same substrate.
I came back to look at the microscope and I note that there are two types of spores:


1.-spores with spiral ornamentation belonging to the apothecia with brown capitulum and an average size of 8.1-9.1 x 4.2-4.7um, we determine as C.salicinum.


2 -. Larger spores (12.1-13.3 x 5.9-6.5um) with warty ornamentation and irregular cracks, belonging to the totally black apothecia (top left image macro).


These last apothecia could belong to C.abietinum?


Thank you, greetings


Susana

  • message #26179
Alain GARDIENNET, 11-12-2013 07:47
Alain GARDIENNET
Re : Calicium sp

Amazing !


Ascospores are fissurate-areolate, >12 µm, yes it'sprobably  C. abietinum. A very interesting collect !


I suppose that you haven't seen thallus ?


But you also should look towards C. denigratum. Compare the to descriptions to choose.


 


Alain

Garcia Susana, 11-12-2013 19:25
Re : Calicium sp
Hi Alain

First, I have no experiencie in determining this type of fungus.
I looked again the sample.
In my first impression I believed that there was not thallus, I believed it was a very deteriorated surface (Figure 1, left).
Now, I see that appear areas with development of surface thallus (Figure 1, right).
When cut also seems confirmed the presence of surface thallus. One poorly developed thallus.


It would then be C.viride. In two different states of development: young apothecia (brown) and mature (black)?


what do you think?


Thanks


Susana

  • message #26194
  • message #26194
  • message #26194
Alain GARDIENNET, 11-12-2013 22:16
Alain GARDIENNET
Re : Calicium sp

It's coming more difficult... often Caliciales are associated.


It's not sure that the green granular thallus is the one of  the two caliciales (perhaps a third one or another lichen). Calicium viride has a green thallus sometimes granular, but some authors give a different spore's ornementation (I read it could be  partially spiraled in C. viride, but sometimes it's said it could be with irregular cracks). Not easy.


Do you want keys for this genus ?


Alain


 

Garcia Susana, 11-12-2013 22:34
Re : Calicium sp
Hi Alain

I used information found on the Internet:
- KEYS TO GENERA AND SPECIES OF Caliciales IN NORWAY (http://www.thavibu.com/caliciales/keyes.htm) and
- Http://lichenportal.org/portal/taxa/index.php?taxon=51834&taxauthid=1&proj=1 for descriptions.


If you have additional information, I would like to receive it.


Thank you very much, greetings


Susana

Alain GARDIENNET, 23-06-2018 22:49
Alain GARDIENNET
Re : Calicium sp

Hi Susanna,


A few days ago, I found the same lichenized fungus. I think it's Calicium glaucellum. But apothecia shloud be pruinose (white) . I will post photos in database.


Alain

Garcia Susana, 26-06-2018 13:05
Re : Calicium sp
Gracias Alain, un saludo

Susana