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26-04-2011 20:41

maurice pelissier maurice pelissier

bonjour j'ai trouvé sur un tronc d'arbre fraich

25-04-2011 22:16

Rodríguez Borja Rodríguez Borja

Hola Os pido una ayuda sobre esta especie recogid

25-04-2011 22:09

Michel RIMBAUD

Bonjour, Je suis complètement perdu devant un pe

25-04-2011 00:57

Yannick Mourgues Yannick Mourgues

Bonsoir à tous. Trouvé sur branche morte encore

23-04-2011 00:49

DirkW DirkW

salut a tous, does anybody know this imperfect

20-04-2011 09:54

Eric Strittmatter

Bonjour à tous, ce printemps les collègues de

19-04-2011 21:05

Björn Wergen Björn Wergen

Hi, just a short question: Is this Phaeosphaeri

19-04-2011 01:53

Yannick Mourgues Yannick Mourgues

Salut Alain. L'Hysteriaceae dont j'ai tant tardé

19-04-2011 01:02

Yannick Mourgues Yannick Mourgues

Que signifient exactement les termes : amérospore

18-04-2011 15:04

Alain BRISSARD

Bonjour à tous Deux à trois mois après une pra

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Crocicreas aff panici
Miguel Ángel Ribes, 02-03-2011 00:38
Miguel Ãngel RibesBuenas noche de nuevo

Tengo esta otra especie sobre pequeños tallos herbáceos no identificados, también en praderas semialpinas en el Pirineo aragonés. Apotecios menores de 0,7 mm, estipitados, muy cerrados, de color blanquecino.
Ascas aparentemente sin croziers y ápice no azul con IKI, de (45.9) 49.1 - 60.2 (63.1) x (4.5) 4.6 - 5.8 (6.5) µm; Q = (7.8) 8.9 - 11.8 (13) ; N = 39; Me = 54.2 x 5.2 µm ; Qe = 10.5, en agua, a partir de material fresco y a 1000x.
Esporas cilíndrico-fusiformes, atenuadas en los extremos, con 1 septo en la madurez y con 4 pequeñas gútulas, 2 en cada extremos de cada célula, de (10.6) 11.1 - 14 (15.1) x (1.8) 2.1 - 2.8 (2.9) µm; Q = (4) 4.4 - 6.1 (6.9) ; N = 48; Me = 12.8 x 2.5 µm ; Qe = 5.2, en agua, a partir de material fresco y a 1000x.
Paráfisis cilíndricas y con numerosas gútulas. Excípulo ectal cubierto por cristales dispuestos en filas.

Muchas gracias,
___________________________
Good night again

I have this other species on small unidentified herbaceous stems, also in semialpine pastures in the Aragonese Pyrenees. Apothecia less than 0.7 mm, stipitate, very narrow, whitish.
Asci apparently without croziers and apex not blue in IKI, (45.9) 49.1 - 60.2 (63.1) x (4.5) 4.6 - 5.8 (6.5) microns, Q = (7.8) 8.9 - 11.8 (13), N = 39; Me = 54.2 x 5.2 microns, Qe = 10.5, in water, from fresh material and 1000x.
Spores cylindrical-fusiform, attenuated at the ends, with 1 septum at maturity and with 4 small guttules, 2 on each end of each cell, (10.6) 11.1 - 14 (15.1) x (1.8) 2.1 - 2.8 (2.9) um; Q = (4) 4.4 - 6.1 (6.9), N = 48, Me = 12.8 x 2.5 um; Qe = 5.2, in water, from fresh material and 1000x.
Paraphyses cylindrical, with numerous guttules. Ectal excipulum covered with crystals arranged in rows.

Thank you very much,

Miguel Á. Ribes
  • message #14504
Miguel Ángel Ribes, 02-03-2011 00:39
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Another macro picture
  • message #14505
Miguel Ángel Ribes, 02-03-2011 00:40
Miguel Ãngel Ribes
Re:Crocicreas aff panici
General view in water
  • message #14506
Miguel Ángel Ribes, 02-03-2011 00:40
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Another general view in water
  • message #14507
Miguel Ángel Ribes, 02-03-2011 00:41
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Ectal excipulum crystals
  • message #14508
Miguel Ángel Ribes, 02-03-2011 00:41
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Asci in water
  • message #14509
Miguel Ángel Ribes, 02-03-2011 00:41
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Asci in IKI
  • message #14510
Miguel Ángel Ribes, 02-03-2011 00:42
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Spores in IKI
  • message #14512
Miguel Ángel Ribes, 02-03-2011 00:42
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Paraphysis in water
  • message #14513
Miguel Ángel Ribes, 02-03-2011 00:43
Miguel Ãngel Ribes
Re:Crocicreas aff panici
And the last one, more paraphysis in water.

Thank you,

Miguel Á. Ribes
  • message #14514
Hans-Otto Baral, 06-03-2011 21:50
Hans-Otto Baral
Re:Crocicreas aff panici
This seems to be what I have as C. dolosella (HB 5188). Only the asci are amyloid in my find. Do you have an idea, is the substrate a mono- or dicot? My specimen is from lowlands, in addition.

Could you provide us with a photo of the ascus apex in IKI? In large magnification?

Zotto
Miguel Ángel Ribes, 07-03-2011 01:44
Miguel Ãngel Ribes
Re:Crocicreas aff panici
It was imposible to identify the small herbaceous stem, sorry, I only know it is was grass, at least at 1.100 m.

Here I send some photos of the ascus apex in IKI.

Thank you

Miguel Á. Ribes
  • message #14595
Miguel Ángel Ribes, 07-03-2011 01:46
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Another ascus apex.
  • message #14596
Miguel Ángel Ribes, 07-03-2011 01:46
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Another one
  • message #14597
Miguel Ángel Ribes, 07-03-2011 01:48
Miguel Ãngel Ribes
Re:Crocicreas aff panici
And the last one.

Thanks again.
  • message #14598
Hans-Otto Baral, 07-03-2011 11:52
Hans-Otto Baral
Re:Crocicreas aff panici
Thanks, but your photos are not in IKI? The first looks like a ring, but I am not sure.

So how sure is it that the asci are IKI-? I did not yet look in any key, ad I do not know C. panici.

Zotto
Miguel Ángel Ribes, 07-03-2011 13:59
Miguel Ãngel Ribes
Re:Crocicreas aff panici
These photos are made in IKI, sure. I will look again dried material this afternoon at the mycology group.

I saw C. panici in Carpenter's Monograph of Crocicreas, 1981. It has only keys and draws, not species description: Ascospores septées -> Ascospores avec 1 septum -> Paraphysis hyalines -> Parois externe des cellules, celles les plus à l'extérieur de la marge et du réceptacle, remifiées et apparaissant cristulées.

Thank you,

Miguel Á. Ribes
Hans-Otto Baral, 07-03-2011 17:05
Hans-Otto Baral
Re:Crocicreas aff panici
Oh yes, now I understand. Croc. panici seems to be a Mollisina, according to the characteristic narrow outgrowths of the excipular cells.

The IKI should be stronger to be sure about a reaction, and dead asci are better to clearly see the ring.

Zotto
Miguel Ángel Ribes, 11-03-2011 00:01
Miguel Ãngel Ribes
Re:Crocicreas aff panici
Hi again

The hymenium has simply disappeared in dried material: nor spores, nor asci and nor paraphysis ¿:(? I only see ectal excipulum, so I can not check asci apex reaction to IKI. One more species to search again.

Thank you,

Miguel Á. Ribes