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09-06-2015 15:26

Michel Hairaud Michel Hairaud

Bonjour à tous, Voici une récolte d'hélotiale

08-06-2015 18:00

Ralf Dahlheuser Ralf Dahlheuser

Hi,I found this Asco between mosses on soil. I thi

09-06-2015 17:53

Quijada Luis

Hi all, one more time I need help! somebody knows

09-06-2015 17:48

Blasco Rafael Blasco Rafael

Hola, esta muestra esta recogida a 1600m, en tallo

09-06-2015 11:40

Blasco Rafael Blasco Rafael

Hola, muy parecida a la anterior mandada, en este

02-06-2015 20:32

Malcolm  Greaves Malcolm Greaves

This was found on soil amongst the dying back Anem

08-06-2015 22:02

Pollard Adam

Bonsoir! Can anyone help ID this Peziza please?Spo

09-06-2015 09:19

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra recogida sobre Urtica a 1

07-06-2015 01:35

Michael Beug Michael Beug

The long-stalked cups were growing on Sphagnum. No

07-06-2015 01:31

Michael Beug Michael Beug

Does anyone know what this Asco might be? It was g

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Nectria?
Guy Buddy, 19-09-2019 22:08
This fungus was growing on an old decayed polypore, most likely a Stereum sp., in Pennsylvania, USA. It was covered in orange/yelllow synnemata, but also had some perithecia.  I was thinking that the synnema were maybe Gliocladium and the perithecia were Nectria/Bionectria etc.

I was referring to: "Three Species of Hypomyces Growing on Basidiomata of Stereaceae", by Kadri Põldmaa, Mycologia Vol. 95, No. 5 (Sep. - Oct., 2003), pp. 921-933.  But ascospores do not have warts.  After reading this I am leaning back to Nectriaceae.

There are some other options such as Sphaerostilbella, but I am not familiar with any of these. Do you think the synnemata and the perithecia are related, and that this a species of Nectria?
Thanks,
Devin
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Josep Torres, 20-09-2019 07:53
Josep Torres
Re : Nectria?
Hola Guy, sobre Stereum y con estas esporas solo se me ocurre la Nectriopsis oropensoides, aunque no lo tengo del todo claro.
Saludos cordiales
Guy Buddy, 20-09-2019 17:52
Re : Nectria?
Hi Josep,
Nectriopsis is possible, but macroscopically it does look a bit different.  I think the perithecia are covered in some kind of hyphomycete ( or the real anamorph), without a subiculum that I see from photos of Nectriopsis. I will look into it though, thanks for the suggestion.
Guy Buddy, 26-09-2019 18:15
Re : Nectria?
For the moment, I believe the synnemata are Gliocladium, described as a anamorph of Sphaerostilbella.  I am refering to "Genera in Bionectriaceae, Hypocreaceae, and Nectriaceae (Hypocreales) proposed for acceptance or rejection". IMA Fungus. 2013 Jul; 4(1): 41–51, which declares Gliocladium as the anamorph for Sphaerostilbella.

Looking at some pictures from:
"Sphaerostilbella broomeana-group (Hypocreales, Ascomycota)", Kadri Põldmaa, Gerald Bills, David P. Lewis, Heidi Tamm. February 2019, Volume 18, Issue 1–2, pp 77–89. It looks like the anamorph is covering the perithecia.  

If the anamorph is covering the perithecium, how is the Gliocladium synnemata related? Does anyone know?
Thanks,
Devin
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