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17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

03-02-2013 19:50

Nina Filippova

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

16-02-2026 18:34

Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

16-02-2026 17:14

Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

16-02-2026 00:05

Maren Kamke Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Joeri Belis

between leaf litter on twig in young salix growth.

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

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Pyrenopeziza (?) from Amelanchier, French Alps
Lothar Krieglsteiner, 01-08-2024 15:43
Lothar Krieglsteiner... 6.7.24, alpine situation (near Glacier), same small bush (only about 0,5 m high) of Amelanchier ovalis than the last post (Hyalopeziza). 
With different keys I do not come to a good result - I end at P. (Mollisia) myricariae but there are some differences.
Unfortunately, the specimen was not fully ripe, so I did find only quite few (but some) free spores.
They contain few oil (few small drops, 0-1) and measure about 7,5-9/2-2,5 µm. The asci are IKI-negative and bear croziers. The marginal hairs are not very conspicuous microscopically (brown, like the prolongued excipulum), but macroscopically.
Who has an idea?
Best regards, Lothar
  • message #79827
  • message #79827
Hans-Otto Baral, 01-08-2024 16:06
Hans-Otto Baral
Re : Pyrenopeziza (?) from Amelanchier, French Alps
Urs Roffler and Javier Bometon have a specimen on Fraxinus and indet. wood in my folder "brown hairs IKI- 8-13 x 2", but the hairs are also microsc. very distinctive.

Mollisia myricariae is a synonym of M. ligni.
Lothar Krieglsteiner, 01-08-2024 16:24
Lothar Krieglsteiner
Re : Pyrenopeziza (?) from Amelanchier, French Alps
Hello Zotto,
thank you very much!
When I compare Pyrenopeziza "brown hairs IKI- 8-13 x 2" I find many common features and not obvious deviations - so this seems to be a good hint. Unfortunately one without a name - as so often.
Best regards, Lothar