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27-08-2023 10:31

Castillo Joseba Castillo Joseba

Del 11 de agosto  en bosque de abetosA ver si se

16-10-2022 11:22

Andgelo Mombert Andgelo Mombert

Bonjour, Nous n'avons toujours pas récolu l'éni

25-07-2023 09:34

Andgelo Mombert Andgelo Mombert

Bonjour à tous, Sur branche morte décortiquée

22-08-2023 18:51

Shane John

I am trying to locate a paper by Kirk (1984) in My

23-08-2023 17:29

Bernard Declercq Bernard Declercq

Hello,I am looking for following paper:E Hüsey?n,

23-08-2023 07:19

Zuidland Peter

Hello all,I need assistance with the ID of this in

22-08-2023 20:38

Enrique Rubio Enrique Rubio

Hi friendsThese isolated, non-stromatic, blackish,

13-08-2023 14:21

Josep Torres Josep Torres

Hola. Unos granos negruzcos de apenas 0,5 mm. foto

16-08-2023 21:08

Elisabeth Stöckli

Bonsoir,Cette espèce a été trouvée sur mousse

08-08-2023 14:07

Juuso Äikäs

These little pyrenos were growing on a dead stem o

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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.