Accès membres

Mot de passe perdu? S'inscrire

15-08-2016 23:03

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,En visionnant ma photo de Scutelli

15-08-2016 21:00

Steve Clements

Bonjour,Cet asco était sur des rameaux dans une z

15-08-2016 22:39

Bernard CLESSE Bernard CLESSE

En chênaie-charmaie neutrophile dans les ornière

14-08-2016 23:22

Bernard CLESSE Bernard CLESSE

Dans une ornière argileuse en chênaie-charmaie n

15-08-2016 12:45

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Cette grande Otidea trouvée en sa

13-08-2016 20:12

Lothar Krieglsteiner Lothar Krieglsteiner

.. on a standing, dead log with thousands of fruit

12-08-2016 17:58

Blasco Rafael Blasco Rafael

Hola, necesito de su ayuda para poder saber que es

11-08-2016 20:45

Enrique Rubio Enrique Rubio

gain This Scutellinia was collected on an old fal

02-03-2015 08:27

FRANCIS FOUCHIER

Bonjour, je cherche au format pdf les articles sui

11-08-2016 23:34

Danny Newman Danny Newman

http://mushroomobserver.org/247522Enough info to g

« < 847 848 849 850 851 > »
Ramsbottomia crec'hqueraultii 280815 287
Miguel Ángel Ribes, 06-08-2016 20:49
Miguel Ãngel RibesHi friends

I have this Ramsbottomia with rounded spores and mixed characters between R. crec'hqueraultii and R. macracantha.

Spores (1000x, H2O, live, without ornamentation): (19,2) 20,3 - 23,4 (23,6) × (19) 20,2 - 22,7 (22,9) µm; Q = 1 ; N = 37; Me = 21,8 × 21,4 µm; Qe = 1.

Ornamentation length: (2,2) 2,6 - 3,9 (4,2) µm; N = 45; Me = 3,3 µm.

I think it is nearest R. crec'hqueraultii than macracantha because Me spores are 21,8 x 21,4 (only a little bigger than 20 µm) and ornamentation is Me = 3,3 µm, but all papers I have read have spore measures for crec'hqueraltii < 20 µm and spiner never > 3,5 µm. And in this collection some spines have a very broad base.

Perhaps my collection is a "joung" R. macracantha?

Thank you in advance.
  • message #44214
Nicolas VAN VOOREN, 07-08-2016 09:53
Nicolas VAN VOOREN
Re : Ramsbottomia crec'hqueraultii 280815 287
Hi Miguel.
You lost your Cotton Blue  ;-)
It would be interesting to know more about the other characters, especially the "hairs", and the habitat.
Miguel Ángel Ribes, 07-08-2016 17:50
Miguel Ãngel Ribes
Re : Ramsbottomia crec'hqueraultii 280815 287
Jejeje, don't worry Nico, next time, despite this impressive ornamentation, I will use CB, CRB or another blue.

This Ramsbottomia was neighbor of Boudiera tracheia, at alpine place, in a very, very humid slope of a small stream, between mosses, with Juncus, Aconitum and another small herbs.

An this are the pictures.
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
  • message #44225
Nicolas VAN VOOREN, 09-08-2016 19:07
Nicolas VAN VOOREN
Re : Ramsbottomia crec'hqueraultii 280815 287
Hi.
In alpine zone, the most common species is R. asperior, but the spores of this collection seem to be too large (and not enough subglobose) to fit the latter.
R. lamprosporoidea is another hypothesis, but the "hairs" should be more coloured and longer (I think you remember our discussion about this taxon and some Pyrenean collections).

In all cases keep this collection, a DNA sequence could be useful to clarify the taxonomy of each taxon...
Miguel Ángel Ribes, 09-08-2016 19:40
Miguel Ãngel Ribes
Re : Ramsbottomia crec'hqueraultii 280815 287
Hi Nico

We have a collection of R. lamprosporoidea published in "Contribución al conocimiento de la micobiotal de Parque Natual de la Sierra Norte de Guadalajara. Catálogo y especies más interesantes I. Bol. Soc. Micol. Madrid 38: 163-181. 2014" (link here: https://www.dropbox.com/s/kilf85z3nt3683z/Contribucion%20conocimiento%20micobiota%20del%20PN%20Sierra%20Norte%20de%20Guadalajara%20-%20Campos%202014.pdf?dl=0):

* with subglobose spores, not rounded, (16,1-)16,9-18,9(-19,3) x (13,8-)14,8-17(-17,4) mµ Q = (1-)1,05-1,18(-1,2); N = 41; Me = 17,9 x 16 µm ; Qe = 1,1.

* with darker hairs of (72,3-)103,5-134,9(-162,3) x (11,7-)13,3-22(-24,3) µm; N = 34; Me = 118 x 17,5 µm

The length hairs is similar in both collection, but not the spore shape.

We could try to sequenced it.

Thank you.