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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolte sur branchette de Castanea dans u
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21-07-2024 10:28
![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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19-07-2024 11:08
![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
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16-07-2024 18:32
![Andgelo Mombert](/uploads/user_vgn/Mombert-0001.jpg)
Bonsoir, Un discomycète sur Liochlaena lanceolat
Disco on Malus wood
Stefan Jakobsson,
05-05-2022 23:21
On the surface of a decorticated branch of Malus recently cut off from a standing tree there were some up to 0,4 mm long fruiting bodies of a more or less elliptic fungus for which I have no good ideas left. Young frbs are covered with a dark brown layer which later seems to break up and form a dark margin around the yellowish brown disc.
The spores are one to three times septate and at times germinating alredy in the ascus, 16.9-21.4 × 6.5-7.6 µm, with one large guttule in each cell. The asci are 50-76 × 12-16 µm, apex blue with and without pretreatment. The parafyses are agglutinated, best observed in ammoniacal CR, branched.
Any ideas what this could be? Southern Finland.
Hans-Otto Baral,
06-05-2022 09:56
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
Re : Disco on Malus wood
This looks much like a relative of Durella atrocyanea, for which i tentatively use Xylogramma (see my folder "Durella group"). But with its amyloid apical rings it is a very unusual species in Xylogramma. The only I have in my subfolder (from Asturias) has longer and narrower spores with less oil, and also has VBs in the paraphyses. Lots of un- or little known species exist in these drough-tolerant discos!
Stefan Jakobsson,
06-05-2022 21:43
Re : Disco on Malus wood
Thank you! Atrocyanea and the Asturian one are undoubtedly close.
I note the my photos went into the Asturian folder - by mistake I presume.
Hans-Otto Baral,
06-05-2022 22:04
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
Re : Disco on Malus wood
Well noticed :-)
Now corrected