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19-09-2019 22:08

Guy Buddy

This fungus was growing on an old decayed polypore

26-09-2019 14:01

Riet van Oosten Riet van Oosten

Hello,Found 17-09-2019, The Netherlands, nearby th

26-09-2019 05:23

Ethan Crenson

Hello all, I was on a walk last Sunday in the Bro

25-09-2019 10:07

Edmond POINTE Edmond POINTE

Bonjour les amis,Je recherche les images de VAN BR

24-09-2019 10:34

Johan Myhrer

Central Sweden 23 september 2019, Bergsjö in Häl

25-09-2019 17:32

Mirek Gryc

2019.07.19 (leaves Alnus sp. & Salix sp.)Diame

24-09-2019 20:47

Mirek Gryc

Gelatinous consistency.Spores 23.3 [27.2; 33.5] 37

24-09-2019 23:26

Alessio Pierotti Alessio Pierotti

can someone help me look for this bibliographic re

24-09-2019 15:24

François Bartholomeeusen

Can someone put me on the right track? During an e

22-09-2019 22:18

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues, Taxon récolté sur crot

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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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