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29-06-2019 06:05

Lothar Krieglsteiner Lothar Krieglsteiner

... found 15.3.19, National Park Monfrague, under

02-07-2019 13:36

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra recogida sobre Rubus idae

01-07-2019 07:52

Blasco Rafael Blasco Rafael

Hola, tengo recogida esta orbilia de esporas renif

30-06-2019 11:03

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, could someone send me this paper, please?G

30-06-2019 20:55

Angel Pintos Angel Pintos

At first I thought it was Beauveria sp, but the co

30-06-2019 23:59

Michel Hairaud Michel Hairaud

Bonjour , J'aimerais trouver la page 205 de : 

30-06-2019 08:43

Juuso Äikäs

I found these yesterday in a wet, muddy depression

29-06-2019 14:56

Peter Thompson

Hello Everyone,I have found an ascomycete which is

29-06-2019 17:00

Petra Eimann Petra Eimann

Test

19-06-2019 12:19

Salvador Tello

Hola.Tengo estos peritecios que crecen en ramitas

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Associated with Sphaeropsis sapinea?
Jenny Seawright, 10-03-2015 14:50
Jenny SeawrightHello all,

I noticed a gelatinous substance on cone scales of Pinus sylvestris, in many (but not all) cases associated with black perithecia.

Spores / conidia from the black perithecia were light brown, simple but some faintly 1-septate, 29-37 x 15 µm - smaller than those suggested by Christian Lechat as Sphaeropsis sapinea in different post, but within the size range for that species?

Conidia from the gelatinous substance were hyaline, c. 24-29 x 3-4 µm. Are these from a different fungus?

With regards,
Jenny


  • message #34469
  • message #34469
  • message #34469
Chris Yeates, 10-03-2015 20:58
Chris Yeates
Re : Associated with Sphaeropsis sapinea?
Hi Jenny
I would still be happy that that is Sphaeropsis sapinea; I have seen it with two and even on occasion three septa. Regarding your second fungus, although your conidial sizes are at the very top end I would wonder about these being beta-condia of Phomopsis conorum now treated as one of the numerous synonyms of the plurivorous Diaporthe eres; I see this is currently in Species Fungorum under an anamorph name - "One Fungus, One Name" at work here? http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=123547

best wishes
Chris
Jenny Seawright, 11-03-2015 10:34
Jenny Seawright
Re : Associated with Sphaeropsis sapinea?
Thanks for the reply Chris, and for confirming the Sphaeropsis. I'll try and find some spores and perithecia of Diaporthe eres among it.........

With regards
Jenny
Chris Yeates, 11-03-2015 15:43
Chris Yeates
Re : Associated with Sphaeropsis sapinea?
Hi Jenny
you won't necessarily be able to find the teleomorph. It is quite common to find Phomopsis spp. on dead twigs, stems, leaves etc., without the accompanying Diaporthe.

After a while recognising Phomopsis alpha*- and ß-conidia is generally quite straightforward - do you have access to the two volumes of British Stem & Leaf Fungi by W.B. Grove?

best wishes
Chris

*system is not letting me enter the Greek letter
Jenny Seawright, 11-03-2015 19:04
Jenny Seawright
Re : Associated with Sphaeropsis sapinea?
Thanks again Chris, but no, I don't have either volume of Grove's "Stem and Leaf Fungi"
John Plischke, 12-03-2015 00:25
John Plischke
Re : Associated with Sphaeropsis sapinea?
John Plischke, 12-03-2015 00:27
John Plischke
Re : Associated with Sphaeropsis sapinea?

This may work better the first did not take you to the book or download page


http://bibdigital.rjb.csic.es/ing/FichaLibro.php?Libro=5228


 

Jenny Seawright, 12-03-2015 11:21
Jenny Seawright
Re : Associated with Sphaeropsis sapinea?
Thank you both for your help - it is much appreciated!

With regards,
Jenny