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05-11-2015 18:19

Asexual morph
Gernot Friebes

Hi again,this curious asexual morph was found on a

07-11-2015 08:44

Anamorfo en Asphodelus
Blasco Rafael Blasco Rafael

Hola tengo esta muestra recogida sobre tallo de As

06-11-2015 18:01

Orbilia
Patrice TANCHAUD

Bonsoir,sur feuillu, spores 4,5-5,2 x 1,8-2,2 µm.

06-11-2015 15:48

No se
Castillo Joseba Castillo Joseba

No tengo ni idea de que  hongo pueda ser... me pa

01-11-2015 10:14

Literature request
Uwe Lindemann Uwe Lindemann

Hi Forum, I'm searching for the following paper:Re

06-11-2015 14:45

Xylarya rosa
Castillo Joseba Castillo Joseba

Me han mandado esta foto y material seco  desde G

04-11-2015 13:01

Sur Larix
Elisabeth Stöckli

Bonjour, Trouvé au sol sur cônes de Larix.Apoth

04-11-2015 12:20

Hyaloscypha aureliella?
Garcia Susana

Hello:I collected this ascomycete growing on wood

03-11-2015 15:13

Usnea filipendula & not Usnea filipendula ?
Cvenkel Miran

Are magnified things fruiting bodies ? No such gre

27-09-2014 08:36

Literature research Lophiostomataceae
Maren Kamke Maren Kamke

Hi everybody,can someone help me with these worksC

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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.