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Charles Aron Charles Aron

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Crocicreas aff dolosellum
Miguel Ángel Ribes, 01-03-2011 23:52
Miguel Ãngel RibesBuenas noches
Esta especie está recogida sobre pequeñas ramas muertas de boj (Buxus sempervirens) en praderas semialpinas en el Pirineo aragonés. Apotecios de aproximadamente 1 mm, estipitados, blanco-cremoso, tanto el himenio como el exterior.
Ascas con croziers y ápice azul con IKI, de (67.6) 73.8 - 87.5 (90.4) x (5.4) 5.6 - 7.1 (7.6) µm
Q = (10.8) 11.2 - 13.8 (15) ; N = 25; Me = 80.1 x 6.4 µm ; Qe = 12.5, en agua, a partir de material fresco y a 1000x.
Esporas cilíndrico-fusiformes, ligeramente alantoides, atenuadas en los extremos, con 1 septo en la madurez y aparentemente sin gútulas, de (15.5) 16.4 - 19.3 (21.3) x (1.9) 2.1 - 2.7 (2.8) µm
Q = (6.5) 6.7 - 8.6 (9.1) ; N = 51; Me = 18.1 x 2.3 µm ; Qe = 7.8, en agua, a partir de material fresco y a 1000x.
Paráfisis cilíndricas y con numerosas gútulas

Muchas gracias,
________________________________________
Good night
This species is collected on dead twigs of boj (Buxus sempervirens) in semialpine pastures in the Pyrenees. Apothecia of about 1 mm, stipitate, creamy white, both hymenium and outer surface.
Asci with croziers and blue apex in IKI, (67.6) 73.8 - 87.5 (90.4) x (5.4) 5.6 - 7.1 (7.6) microns
Q = (10.8) 11.2 - 13.8 (15), N = 25, Me = 80.1 x 6.4 microns, Qe = 12.5, in water, from fresh material and 1000x.
Spores cylindrical-fusiform, slightly allantoid, attenuate at the ends, with 1 septum at maturity and apparently without guttules, (15.5) 16.4 - 19.3 (21.3) x (1.9) 2.1 - 2.7 (2.8) microns
Q = (6.5) 6.7 - 8.6 (9.1), N = 51, Me = 18.1 x 2.3 microns, Qe = 7.8, in water, from fresh material and 1000x.
Paraphyses cylindrical, with abundant guttules.

Thank you

Miguel Á. Ribes

  • message #14490
Miguel Ángel Ribes, 01-03-2011 23:52
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Another macro picture
  • message #14491
Miguel Ángel Ribes, 01-03-2011 23:53
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
General micro
  • message #14492
Miguel Ángel Ribes, 01-03-2011 23:54
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Another general micro
  • message #14493
Miguel Ángel Ribes, 01-03-2011 23:54
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Asci in water
  • message #14494
Miguel Ángel Ribes, 01-03-2011 23:55
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Asci in IKI
  • message #14495
Miguel Ángel Ribes, 01-03-2011 23:55
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Spores in water
  • message #14496
Miguel Ángel Ribes, 01-03-2011 23:55
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Paraphysis in water
  • message #14497
Miguel Ángel Ribes, 01-03-2011 23:57
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Paraphysis in IKI
  • message #14498
Miguel Ángel Ribes, 01-03-2011 23:57
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Ectal excipulum in water
  • message #14499
Miguel Ángel Ribes, 01-03-2011 23:57
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
And finally the stem in water

Thank you
  • message #14500
Hans-Otto Baral, 06-03-2011 21:41
Hans-Otto Baral
Re:Crocicreas aff dolosellum
Dear Miguel

I think this is Cyathicula fraxinophila on Fraxinus petioles. What do you think?

Did you collect it now? It is an autumn species.

Zotto
Miguel Ángel Ribes, 07-03-2011 00:54
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Dear Zotto

I think it fits perfectly with your C. fraxinophila plate, but in this case it was growing in dead twigs of boj (Buxus sempervirens). This collection is from Pyrenees, 12/10/2010.

Today, is it Cyathicula or Crocicreas?

Thank you,

Miguel Á. Ribes
Hans-Otto Baral, 07-03-2011 11:39
Hans-Otto Baral
Re:Crocicreas aff dolosellum
For me it is Cyathicula, others prefer Crocicreas.

Could you please find out if there is any Fraxinus in this subalpine area? Your photo decidedly looks lek Fraxinus petioles.

You mean 12. Oct. (or 10. Dec.?)

Zotto
Miguel Ángel Ribes, 07-03-2011 13:27
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Dear Zotto

I am going to ask friends to make sure what is the exact vegetation in Lizara's refuge (Huesca) to confirm the presence of Fraxinus. Any case, this species was found under clumps of small boxs, semi creeper, no farther than 2-3 cm from Typhula buxi and Marasmius buxi (both growing in sheets).

Sorry, it is from 12 Oct. 2010.

Thank you,

Miguel Á. Ribes

Hans-Otto Baral, 07-03-2011 17:12
Hans-Otto Baral
Re:Crocicreas aff dolosellum
Fraxinus petioles are easy to identify: They are about 10 cm or so long and one can see the projecting nipples where the pairs of leaflets were inserted. Buxus leaves I know very small and with a short petiole, so my impression is that this is impossible.

Zotto
Miguel Ángel Ribes, 07-03-2011 17:42
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
No, no, Zotto, sorry, I am sure that the substrate is not buxus petioles, too. I am agree with you, buxus petioles are very short. I am thinking more about small branches or twigs of boj (see attached photo of Typhula buxi, please).

For now, two colleagues who visit this area frequently do not remember any fraxinus there, but I am expecting at least the answer of one person from Jaca.

Thank you

Miguel Á. Ribes
  • message #14605
Hans-Otto Baral, 07-03-2011 17:46
Hans-Otto Baral
Re:Crocicreas aff dolosellum
Oh yes, I forgot that you wrote about twigs. However, your images show me that these "twigs" are flattened on one side, and the upper one shows on the left a broadening characteristic of the basal insertion of the petiole. If you have a photo of the complete substrate I could be more sure.

Zotto
Miguel Ángel Ribes, 07-03-2011 18:05
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
At the moment I only have these 3 images no so closer. I am waiting for a general photo of the habitat from a colleague.
  • message #14607
Miguel Ángel Ribes, 07-03-2011 18:06
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Another one
  • message #14608
Miguel Ángel Ribes, 07-03-2011 18:07
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
And the last one, at the moment I have no more, sorry.

Thank you again

Miguel Á. Ribes
  • message #14609
Hans-Otto Baral, 07-03-2011 18:29
Hans-Otto Baral
Re:Crocicreas aff dolosellum
That's great, but the substrate I cannot see. But you have the apothecia with their substrate?

Zotto
Miguel Ángel Ribes, 07-03-2011 18:55
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
No, the only photos I have from this Crocicreas are the first of this post, on a stone.

Miguel Á. Ribes
Hans-Otto Baral, 07-03-2011 19:37
Hans-Otto Baral
Re:Crocicreas aff dolosellum
But I still do not understand: you do not have the specimen? Already given to a herbarium?

Zotto
Miguel Ángel Ribes, 07-03-2011 20:47
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Sorry, I did not understand you. I have a lot of apos on his twigs. This night I will take some photos of dried material with the substrate.

Thank you, Zotto,

Miguel Á. Ribes
Miguel Ángel Ribes, 08-03-2011 19:38
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Dear Zotto

99% there are not any fraxinus near Refugio de Lizara. Yesterday we were looking this 1-1,2 mm diameter small branches and someone suggested it looks like "retama".

I have take these 3 photos. I am going to send your private in large resolution.

Thank you again for your help,

Miguel Á. Ribes
  • message #14620
Miguel Ángel Ribes, 08-03-2011 19:38
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
The second
  • message #14621
Miguel Ángel Ribes, 08-03-2011 19:39
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
And the last one
  • message #14622
Hans-Otto Baral, 08-03-2011 19:56
Hans-Otto Baral
Re:Crocicreas aff dolosellum
I am still sure this is a petiole, with 3 pairs of leaves. So Acer is excluded, for Sorbus aucuparia the petioles are maybe too thick.
I have no good photos of Fraxinus petioles but I attach one with Hymenoscyphus pseudoalbidus.

Zotto
  • message #14623
Miguel Ángel Ribes, 08-03-2011 21:57
Miguel Ãngel Ribes
Re:Crocicreas aff dolosellum
Ok, Zotto, thank you

I believe it's difficult to make progress with the data we have, because there are not Acer, Sorbus or any other broad-leaved trees near that place, only Buxus, a few Pinus, small Juniperus and herbaceous vegetation. I think we will wait the snow thaw and a local gone close there and confirm us what the vegetation is. ;)

Anyway, Cyathicula aff. fraxinophila. Is it host-exclusive?

Miguel Á. Ribes
Hans-Otto Baral, 08-03-2011 22:02
Hans-Otto Baral
Re:Crocicreas aff dolosellum
That's it: I know it only from Fraxinus, over 30 collections. And since the substrate looks 99% like Fraxinus I believe in it.

Zotto
Miguel Ángel Ribes, 19-07-2011 08:51
Miguel Ãngel Ribes
Re : Crocicreas aff dolosellum
Dear Zotto

YOU ARE GREAT. Do you remember this discussion 5 months ago about Cyathicula fraxinophila / dolosella?

Yesterday Jorge Hernanz were there, at "Refugio de Lizara", exactly in the place we collected the sample, and the place have many, many Fraxinus, perhaps excelsior.

So, Cyathicula faxinophila.

Thanks a lot, Zotto.
Hans-Otto Baral, 19-07-2011 22:28
Hans-Otto Baral
Re : Crocicreas aff dolosellum
Hi Miguel

That's fine, thanks :-)

Zotto