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06-01-2016 14:18

Gilbert MOYNE

Adgelo Mombert que certains de vous connaissent à

05-01-2016 23:05

Nick Aplin

Salut à tous,I'm having trouble placing this spe

05-01-2016 22:45

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Récolté sur tige pourrie de reno

05-01-2016 01:45

Nick Aplin

Salut à tous, I wonder whether anyone could help

04-01-2016 19:46

Tapia Fidel Tapia Fidel

Someone can get, the following literature:Dennis,

04-01-2016 22:49

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Si quelqu'un a une idée, je suis

05-01-2016 11:04

Blasco Rafael Blasco Rafael

Hola, recogi el dia 26-12-15 en Orilla de río PiÃ

05-01-2016 13:28

Blasco Rafael Blasco Rafael

Hola, esta Nectria estaba en rama de Buxus, puede

04-01-2016 19:10

Blasco Rafael Blasco Rafael

Hola, ayer recogi estas muestras pensando que fuer

02-01-2016 17:35

Andreas Gminder Andreas Gminder

Bonjour, avant que je scan tout l'ouvrage je voud

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Thyronectria chrysogramma?
M Jonathan, 28-12-2015 05:24
M Jonathan
Collected 24 december 2015, on Ulmus americanus bark in Ottawa ontario.

the Perithecia show stricking yellowish coloration.


The asci seem to be bitunicate, do not react in melzer and bear 8 spores, the spore measure 28-31u*10-12. The spores contain several (up to 9-10) horizontal septum and 1-2(3?) vertical septum.


Seem to be promising for T chrysogramma, however I can't find pictures to compare.

I have the specimens in case anyone is interested in them

Regards

Jonathan M

https://c2.staticflickr.com/6/5778/23721004260_c0e180c662_b.jpg

Gernot Friebes, 28-12-2015 09:07
Re : Thyronectria chrysogramma?
Hi Jonathan,

here is a paper by Jaklitsch & Voglmayr which includes photos of T. chrysogramma as well as further literature on that species and a key to the genus: tps://www.researchgate.net/publication/270283146_Persistent_hamathecial_threads_in_the_Nectriaceae_Hypocreales_Thyronectria_revisited_and_re-instated

Best wishes,
Gernot
M Jonathan, 28-12-2015 18:55
M Jonathan
Re : Thyronectria chrysogramma?
Thank you, I lookedat that paper and somehow missed those pictures, The ressemblance are striking, I think it is the good identification, even if my specimens are not in groups like those species tend to be.