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12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

06-06-2025 12:12

Hans-Otto Baral Hans-Otto Baral

Dear all I want to ask you if you have any recent

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

15-06-2025 21:39

éric ROMERO éric ROMERO

Bonjour à tous, Espèce récoltée sur une tige

14-06-2025 13:28

Richard VALERI Richard VALERI

Bonjour à tous.Trouvé au sol, longuement résupi

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

13-06-2025 19:57

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y avellanosEjemplar uni

12-06-2025 19:36

Rodríguez Borja Rodríguez Borja

Hi, I have got this collection hoping you can giv

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

12-06-2025 15:53

Viktorie Halasu Viktorie Halasu

Hello, I keep finding something with spores like

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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     

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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
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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
Jean-Paul Priou, 06-03-2013 23:10
Jean-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