Accès membres

Mot de passe perdu? S'inscrire

17-09-2014 18:20

Enrique Rubio Enrique Rubio

Hi again These gregarious, small (up to 0.5 mm hi

18-09-2014 13:53

Blasco Rafael Blasco Rafael

Hola this Tengo Todos Los veo Scutellinia que Jahr

18-09-2014 10:22

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra recogida a unos 1700 m en

17-09-2014 19:29

Andreas Gminder Andreas Gminder

Bonjour, J'ai trouvé une Nectria ss. lato avec d

16-09-2014 19:22

Mafalda Freire Fernando Mafalda Freire Fernando

Hello everyone, I wonder if anyone has a literatu

17-09-2014 08:05

Blasco Rafael Blasco Rafael

Hola. les parece que estas muestras puedan ser Hya

17-09-2014 16:08

UZUN Yasin UZUN Yasin

Spores10-11,5 *3-4,5 µm...O dead stems of herbace

17-09-2014 08:19

UZUN Yasin UZUN Yasin

Spores 10-12 * 2,5-3 µm..

17-09-2014 03:33

Masanori Kutsuna

Hello everyone, According to some literatures (Den

16-09-2014 22:28

UZUN Yasin UZUN Yasin

Spores 7-9 * 2,3-3,4 µm.. some spores have one se

« < 1 2 3 4 5 > »
Helotiaceous fungus on male cones of Pinus radiata
Enrique Rubio, 04-03-2013 17:41
Enrique RubioHi to all

Last week-end we have collected these small, gregarious, pale witish or amber (when old), subturbinate or shortly stipitate up to 1mm high and 0.7 mm broad ascomata growing on male cones of Pinus radiata lying on the wet ground. It seems to have any blackened stromatized zones at their insertion on the host.

The hymenium is never convex but it is plane to slightly concave.

The ascospores are smooth, broadly fusiform and they seem to have 1 nucleus.
Asci with croziers, 8-spored, with an apical apparatus weakly euamyloid, very difficult to observe and I don't know their type (Sclerotinia-type, Hymenoscyphus-type?) .. Living paraphyses with many rounded Vb's, hyaline to yellowish.

Ectal excipulum is built by roundish to vesicular cells in a tetura globulosa-subangularis. No hairs in the apothecial margin; only cilyndrical to subclabvate elements with the same Vb's.


I think perhaps this fungus belongs to the Sclerotiniaceae or Helotiaceae. I'm not sure...
Many thanks for help me

Enrique     

  • message #22304
  • message #22304
  • message #22304
  • message #22304
  • message #22304
  • message #22304
  • message #22304
Raúl Tena Lahoz, 04-03-2013 17:54
Raúl Tena Lahoz
Re : Helotiaceous fungus on male cones of Pinus radiata
RRRRAVA/RAVUSsALUDOS
Enrique Rubio, 04-03-2013 17:55
Enrique Rubio
Re : Helotiaceous fungus on male cones of Pinus radiata
¿Coomoorrr?
Enrique Rubio, 04-03-2013 18:15
Enrique Rubio
Re : Helotiaceous fungus on male cones of Pinus radiata
Creo adivinar lo que has dicho: Hymenoscyphus ravus ¿verdad?
Michel Hairaud, 04-03-2013 18:42
Michel Hairaud
Re : Helotiaceous fungus on male cones of Pinus radiata
Bonjour amis d'Espagne , 

Yes Enrique, the EE is noticeable with the raher globose cells and cylindrical 1-2 septate protuberances with high vacuoles content . I also noticed it on Pinus needles with Desmazierella acicola and ond Cedrus buds (see attached pic) . 


  Au plaisir de se retrouver bientôt en Asturies

Michel
  • message #22308
  • message #22308
Enrique Rubio, 04-03-2013 18:48
Enrique Rubio
Re : Helotiaceous fungus on male cones of Pinus radiata
OK., MIchel

J'avais tes belles photos de cette espéce.
A bientot a Somiedo  


Enrique
Raúl Tena Lahoz, 04-03-2013 23:50
Raúl Tena Lahoz
Re : Helotiaceous fungus on male cones of Pinus radiata
Perdón Enrique... mi móvil, no sé que pasaba pero no podía ver lo que estaba escribiendo. Sí me refería a Hymenoscyphus ravus.

Salut Michel!

Raúl
J-Paul Priou, 06-03-2013 23:10
J-Paul Priou
Re : Helotiaceous fungus on male cones of Pinus radiata
Hi all, H ravus is very common on dead bud of pinus pinaster during spring in my country more 20 collections.
 Enrique was right to doubt between Sclerotiniaceae and Helotiacea,  Svreck described this taxon on Hymenocyphus ravus and.........Ciboria rava !
Amitiés à tous
JPP
Enrique Rubio, 07-03-2013 13:21
Enrique Rubio
Re : Helotiaceous fungus on male cones of Pinus radiata
Many thanks Jean Paul. You are right because I was thinking in a Ciboria species.


Amicalement
Enrique