17-09-2025 10:50
Heather MerryleesHi there!I am hoping for any advice on the identif
27-11-2025 11:46
Thomas Læssøehttps://svampe.databasen.org/observations/10493918
29-11-2025 08:40
Andreas Millinger
Hello,on a splintered part of a branch on the grou
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Nogueira HéctorNovember 23, 2025 Requejo de Sanabria (León) SPAI
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Thomas Læssøehttps://svampe.databasen.org/observations/10490522
27-11-2025 15:41
Thomas LæssøeSpores brownish, typically 4-celled; 26.8 x 2.4;
27-11-2025 12:01
Thomas Læssøehttps://svampe.databasen.org/observations/10496727
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Thomas LæssøeCollectors notes: Immersed ascomata, erumpent thro
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Thomas Læssøehttps://svampe.databasen.org/observations/10534623
26-11-2025 18:13
Jason Karakehian
The entire run of Mycotaxon is now available throu
disco on Phragmites
Chris Yeates,
05-07-2021 15:19
Bonjour tous
Collected on fallen dead culms of Phragmites australis from the previous year. All images are of living material in water.
Apothecia colourless or with a faint pinkish tinge, no protruding hairs, up to 0.4mm. They are sessile and leave a brown attachment ring, though this may just be remnants of host tissue. The margin is as seen in the final image - without protruding cells/hairs; the terminal cells c. 5-6µm wide.
Asci 8-spored, apex blue in Baralsche Löhsung, with croziers. Quite a number of the asci (at a particular stage of development) with 1-4 "Psilachnum bodies" their size dependant on how many there are. One particular developing ascus (see image) was divided into a number of vacuoles, each with a single globular body - very active (Brownian motion?).
Ascospores mostly clavate, with small droplets towards (but not at) the apices; 8.8-10.8 x 2.4-2.7µm, Qe = 3.8.
As ever suggestions welcome.
Cordialement, Chris
Juuso Äikäs,
05-07-2021 21:42
Re : disco on Phragmites
Hopefully someone else will comment as well, but could it be a Pyrenopeziza sp.? It reminds me of P. typhicola to some degree, which I earlier posted here. That one has also those "Psilachnum bodies", but obviously that's another species (dark excipulum, shorter spores, different host).
Chris Yeates,
12-07-2021 16:41
Re : disco on Phragmites
Apologies for not responding sooner.Thanksfor the suggestion, but I don't think this is a Pyrenopeziza, or near relative. Perhaps someone else has a suggestion.
Chris
Nick Aplin,
12-07-2021 22:00
Re : disco on Phragmites
Salut Chris,
Any chance it could belong in the Helotium microspis group?
For example in Zottos Google Drive files: Helotiales/Pezizellaceae (with VBs)/Calycellina/microspis VBs-
Amités,
Nick
Any chance it could belong in the Helotium microspis group?
For example in Zottos Google Drive files: Helotiales/Pezizellaceae (with VBs)/Calycellina/microspis VBs-
Amités,
Nick
Chris Yeates,
14-07-2021 19:15
Re : disco on Phragmites
Ave Nicolae
Rem acu tetigisti!
I think that is a splendid suggestion and several characters fit well with Zotto's images.
Many thanks, Chris