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17-02-2026 09:41

Diaporthe spiculosa?
Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

03-02-2013 19:50

Helotium schimperi
Nina Filippova

Good time), I've compared this specimen with the

16-02-2026 18:34

Exosporium tiliae
Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

08-12-2025 17:37

possibly related to Melanomma - on Abies
Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-02-2026 21:25

Pyreno in the bark of Lonicera xylosteum
Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

16-02-2026 17:14

Cucurbidothis specimens?
Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

recherche de publi
Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

16-02-2026 00:05

Literature request
Maren Kamke Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Sarcoscypha coccinea or austriaca?
Joeri Belis

between leaf litter on twig in young salix growth.

14-02-2026 22:45

Vexillomyces/Claussenomyces
Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

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Trichonectria ? Bionectriaceae ? Between algae on Picea abies.
Perz Piotr, 27-09-2009 00:05
Dear Asco-Friends

Yesterday I find this little, orange "nectrioid" fungus between algae on Picea abies wood. Because of short, hyaline, thick-walled hairs I'm thinking about Trichonectria. The hairs are septate.
Subiculum abundand, white, all over the base of perithecium.

Because of characteristic ascospores (asci are 8-spored) I think, you can help me to identifi this fungus with the macrophotos and micrs of ascospores.

best wishes
Pimpek
  • message #9101
Perz Piotr, 27-09-2009 00:07
Re:Trichonectria ? Bionectriaceae ? Between algae on Picea abies.
very similar, macroscope and habitat & ecology was my found of Psoroglaena abscondita (Coppins & Vězda) Hafellner & Türk - but totally w/o hairs.
  • message #9102
Perz Piotr, 27-09-2009 00:08
Re:Trichonectria ? Bionectriaceae ? Between algae on Picea abies.
I think the ascospores are very characteristic, They are 2-celled (= 1-septate), also inside of living asci.

  • message #9103
Perz Piotr, 27-09-2009 00:10
Re:Trichonectria ? Bionectriaceae ? Between algae on Picea abies.
very similar, macroscope and habitat & ecology was my found of Psoroglaena abscondita (Coppins & Vězda) Hafellner & Türk - but totally w/o hairs.

I think the ascospores are very characteristic, They are 2-celled (= 1-septate), also inside of living asci.

Note, that the perithecim collapsed when dry,

The hyaline, septate, thick-walled projecting hairs are mostly present around the ostiolar region (exactly like in Trichonectria rubefaciens (Ellis & Everh.) Diederich & Schroers)

thank you
Piotr
Javier Etayo, 27-09-2009 17:23
Re:Trichonectria ? Bionectriaceae ? Between algae on Picea abies.
Your sample could fit well in Trichonectria, a genus with several lichenicolous species. I have not seen this spores in any of the lichenicolous species, this and its habitat made it very interesting.
Best wishes. Javier Etayo