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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

15-04-2011 23:19

Alain GARDIENNET Alain GARDIENNET

Bonsoir, je cherche la description de Venturia p

15-04-2011 17:30

Alain GARDIENNET Alain GARDIENNET

Bonjour forum, Peziza bovina W. Phillips et Peziz

15-04-2011 17:23

Bernard Declercq Bernard Declercq

Bonjour, Qui peut me dépanner avec l'article s

15-04-2011 06:56

georges fannechere

Bonjour, Les clés de René Dougoud (avec son a

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hyphomycete a abies
DirkW, 23-04-2011 00:49
DirkWsalut a tous,

does anybody know this imperfect fungus on cones of abies? i had expected phragmotrichum chailletii (which is on picea-cones), with this beautiful spores. but instead of i found very ordinary fusoid spores with 11-14 x 2, nothing more.

best to all

dirk
  • message #15132
DirkW, 23-04-2011 00:50
DirkW
Re:hyphomycete a abies
spores
  • message #15133
Hans-Otto Baral, 23-04-2011 09:45
Hans-Otto Baral
Re:hyphomycete a abies
High Dirk

were the spores 1-septate? I remember that Bernd Mühler from Chemnitz sent me something with such fusoid eguttulate conidia, I think with 1 septum, but I did not documentate and finally threw it away.

It was on a conifer cone, maybe Abies. Your images are too unsharp to see details.

Zotto
DirkW, 23-04-2011 09:52
DirkW
Re:hyphomycete a abies
hi zotto,

yes exactly! one middle-septum ...
sorry for the bad mikro, my foto-equipement in this case is very simple ;-)

dirk
Hermine Lotz-Winter, 24-04-2011 14:29
Re:hyphomycete a abies
Hi Dirk,

This could be Sirococcus conigenus. Normally, I find it on Picea cones, but there is evidence in literature, that it also comes on Abies alba (literature cited in a paper by Rossman et al., Forest Pathology 2007 , http://ddr.nal.usda.gov/bitstream/10113/12221/1/IND44005645.pdf).

Regards hermine

Hans-Otto Baral, 24-04-2011 16:34
Hans-Otto Baral
Re:hyphomycete a abies
Dear Hermine

I tried to open this document, but I did not arrive. Do you have a scan of that literature about Sirococcus?

I easily found this on a site about Picea disease.

Zotto
  • message #15137
Gernot Friebes, 24-04-2011 17:06
Re:hyphomycete a abies
it is available online: http://ddr.nal.usda.gov/bitstream/10113/12221/1/IND44005645.pdf

I also agree that this looks very much like Sirococcus conigenus on Picea cones.

Best wishes,

Gernot
DirkW, 25-04-2011 11:02
DirkW
Re:hyphomycete a abies
salut et merci a tous!

especially gernot for the instructive article!! i will follow this track further!
what is irritating me a bit is the irregular and caved surface of the stroma in the plant dease-painting. my stromas are quit plain and globose ... but it seems to be this taxa, the spores fit perfect. or something very close, which is concerned with abies ... i will have an eye on it ...

best to all and much fun in melle!

dirk