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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

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Josep Torres Josep Torres

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03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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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